Yes, and hoo boy. Each person has three Gods they worship in particular, and at least one Aspect of those gods. They are usually allies or friendly, but neutral ones can be taken too.
For example, Zoah follows Shin the Lord of Death in the Aspect of War (and has a prestige class based on that), Shin's wife Liagora the Huntress in the Aspect of Honor, and their son Timeus Invictus in the Aspect of Fear. Renn the Gunmage follows Bree the Hedonist in the Aspects of Weapons and Hedonism, Shin the Lord of Death in the Aspect of War, and Pellegrin the Wanderer in the Aspect of Travel.
Coranthiir: Coranthiir is the god of law and good, making him one of the most widely worshiped deities. Various people worship this god, including monks, paladins, and warrior-healer clerics in particular. Houses of laws and courts are often temples of this god, and offerings are made to him before a case may begin. Law enforcement agencies also claim to work in the name of Coranthiir. He is often referred to as the Balanced Sword, or the Eternal Star.
Coranthiir (Righteousness, Purity, Order) (Light, Animals, Healing)
Darshendros: Darshendros, one of the least (openly, at least, as many pray to him in secret) worshiped gods in the pantheon, is the god of Darkness, Evil, and all things Unholy. This sets him directly against Coranthiir, whom he contantly plots against. He is often refered to as the Dark Dragon, His Immaculate Horror, and various other titles describing his malevolence. His worshipers are among the most violent and unorderly, oft-times making sacrifices of blood, death, and other things to the god. He is the god of almost all openly evil entities, of arsons, and of many small, tribal groups of people who worship him as a night-god.
Darshendros (Darkness, Evil, Unholy) (Fire, Death, Blood)
Ingram: Ingram is the Thief's God, refered to as the Lucky Coin, among other names. He is the god of thieves and gamblers, as well as inventors, and to a lesser extent, certain magicians and assassins. While shrines to this god are rare, he is often worshiped - or, at the very least, praised when good luck befalls a person. Common tokens of worship are coins marked with his name, worn about the neck for good luck. He is also known by some as the Betrayer God, because of his trickster ways, and many unfaithful bodyguards or secret-keepers have been known worshipers of him.
Ingram, (Theft, Trickery, Luck) (Technology, Poison, Illusion)
Malu: Malu is known as the God of Science, as he rules over space, time, and generally keeps the entire world in working order, making sure that things like planes of existence don't crash into each other. He is also a god of creation, working wonders of great skill in the form of weapons, architecture, and art. He is perhaps the single most worshiped god of the pantheon - as all creatures, benevolent or malicious, must bow down to the wear and tear of time. Almost every community, no matter what race or size, will have a shrine to this god, at the very least. Many craftsmen also worship this god specifically, as he is known to imbue the forges of the best smiths with his favor, allowing them to create true works of wonder with their hammer and anvil. To a lesser degree, philosophers and inventors worship this god, as they seek to understand just how time and space work. A few mages who specialize in transportation may worship him, as well. He is sometimes known as the Maker, or the Regulator.
Malu (Time, Space, Creation) (Wood, Metal, Magic)
Mingan: Although not an entirely popular or well-understood god, Mingan is often involved in the tangles of intrigue among the gods. Many of his followers are converted at a young age for his mastery of Chaos (40%), others are magically-inclined warriors seeking Blood (30%), and the majority of the remaining simply seek eternal life as the Defiant (20%), all eventually growing to worship him in all Aspects for the promises of power. Although there are precious few temples of Mingan, it is fairly common to see several of his followers attending and offering services at the temple of another friendly god. The few temples that do exist are often extremely lavish and extremely isolated from society. He is known as the Nightwalker and the Vampire God.
Mingan, (Chaos, Blood, Necromancy) (Lust, Darkness, Magic)
Shin: The original, and truest lord of death, Shin is almost as widely worshiped in one form or another as Coranthiir or the other 'benevolent' gods. He is the God of war, death, and destruction, and he can invoke fear with his taste for both vengeance and justice. He does not condone needless death of everything and anything in some scheme to wipe out the world, but instead represents the finality of death - that it must happen, eventually, for all things in this world. Among these commoner worshipers there are many temples, and he is typically refered to as "Death" or by his name - the only other name he goes by is Potraikos, the which the people of Roak Val call him. Soldiers, bodyguards, assassins, mercenaries, and almost all fighters of any caliber worship this god as the God of War, commonly refering to him as "Warpath", despite the fact that he represents discipline, loyalty, and bravery in battle, as opposed to senseless slaughter. Very, very few worship this god as simply the God of Destruction, and he does not recognize these cultists as part of his faith. Around 30 percent of his worshipers worship him in the true, Decaric sense - as all three aspects, representing that death comes in all forms, and that war and inevitable destruction are sometimes best for the world in the long run. Among these is a group refered to as "The Untold Legions", warriors who follow Shin's decrees when he believes that war is in the best interest of a kingdom. The God of Death's closest ally (and brother!) is Mingan, despite Mingan's favor with necromancers and his condoning of such activities. Many world-myths portray these two gods as warriors, one representing guile and finesse, the other as strength and martial discipline.
Shin, (War, Death, Destruction) (Fear, Vengeance, Justice)
Arnum: Known as the Scholar, and occasionally as the Teacher's God, shrines to Arnum are located in almost every schoolroom and university. Arnum is the favorite of educators, students, mages, lawyers, jurors, and the like - although other gods are praised first, it is Arnum who is responsible for the sentience of all mortals and often provides "intuition" or "genius moments".
Arnum, (Magic, Enlightenment, Knowledge) (Wisdom, Technology, Truth)
Chelan: Commonly known as the God of Balance, Equalizer, or simply "Chelan Godking" Chelan is perhaps the least understood of all gods. Neutral towards all, it is Chelan's responsibility to ensure that no god, mortal, or group of either becomes too powerful, and is quite willing to wage war to ensure that an equilibrium of power is maintained by all. He does not have any allies or enemies, and is reputed to be the highest-ranked god among the pantheon -as well as being the oldest and the progenitor of many elder gods among the pantheon.
Chelan, (Balance, Neutrality, Transcendence) (Blood, Magic, Weapons)
Radan: Radan is known as the Lover's God and the Speaker; most marriages are presided over by Radan's priests. He is followed by many statesmen, as well as new parents and diplomats.
Radan, (Courtship, Diplomacy, Parenting) (Wisdom, Fertility, Love)
Tokee: Tokee is mainly worshipped by students and rebellious teenagers, although bars, fraternities, and certain houses of pleasure are often dedicated to his name.
Tokee, (Sex, Pain, Pleasure) (Insanity, Alcohol, Education)
Yupoli: Yupoli is called the Children's God, the Poet, is the second most worshiped god of students and teachers. Yupoli is creative and curious, and followers of Yupoli tend to share the same traits.
Yupoli, (Laughter, Wisdom, Education) (Poetry, Love, Time)
Sanoci: Sanoci is known as the Lord of Demons, responsible for the creation of angels and demons. He is followed by unscrupulous mercenaries, brawlers, barbarians, and those with a penchant for violence. His natural ally is Darshendros and he is considered the brutal counterpart; where Darshendros deals in intrigue, Sanoci cares only for violence, disorder, and ruin.
Sanoci (Pride, Violence, Individualism) (Destruction, Neutrality, Pleasure)
Aphiliam: Aphilam is called the Goddess of Broken Promises, and is the only god who refuses any male to gain any power or rank among her followers. Distrusted by most gods, Aphilam is followed by prostitutes, diplomats, lawyers, and merchants.
Aphiliam, (Beauty, Anger, Manipulation) (Wealth, Lies, Lust)
Bree: Bree - usually called the Hedonist - is a god concerned with doing good in the world, with her followers often administering "street justice" alongside charity - especially where their bodies can come into play. If it feels good, it must be good for you!
Bree, (Hedonism, Justice, Weapons) (Chaos, Magic, Lust)
Camille: Camille, also known as "Mother Nature", is worshiped mainly by farmers and druids.
Camille, (Alchemy, Technology, Plants) (Fire, Order, Animals)
Illeni: Illeni - usually referred to as the Peacekeeper, is worshipped by healers, midwives, guards, and archers, as well as those involved in trials.
Illeni, (Healing, Law, Protection) (Archery, Wisdom, Plants)
Liagora: Liagora, commonly called the Huntress, is followed by bounty hunters, lycanthropes, and some of the more good barbarians.
Liagora, (Honor, Strength, Revenge) (War, Necromancy, Metamorphosis)
Sa'ada: Sa'ada - also known as the Black Widow - is rarely worshipped, preferring to draw her power from the actions of mortals in general.
Sa'ada, (Vengeance, Lust, Envy) (Magic, Chaos, Destruction)
Daimonas: The greatest of the Lesser Gods, Daimonas was formerly the 5th most powerful god before the War of the Gods and his fall - capable of fighting Darshendros to a standstill and defeating Coranthiir. Although significantly weaker than his fomer splendor, Daimonas is the ruler of the Minor deities and is still feared by many for his connections. His stances on the other gods are constantly changing and shifting, and he is also the most visible god for his penchant of appearing as a human or possessing humans for his own ends. He is known as the Dark Angel and also the Fallen One.
Daimonas (Psionics, Aether, Possession) (Darkness, Destruction, Chaos)
Kuro: Kuro is a strong ally of Aphilam and a relatively new god to the list, not ascending into his divine status until after the War of the Gods. Rumors hold that he was a former Defender of the Faith for Mingan, although he does not encourage questions of his past.
Kuro (Fire, Illusion, Anger) (Weapons, Aether, Darkness)
Ayrn: Ayrn, known as the Tradesman, maintains a single alliance with Kuro, although he remains neutral towards all gods save for being hostile towards Ingram and his nimble-fingered followers. The youngest of the gods, Ayrn and his followers are often under political pressure from the other sects and gods.
Aryn (Trade, Animals, Greed) (Balance, Forge, Art)
Zakai: Often called Zakai the Merciful or the Stormrider, Zakai's followers are typically disillusioned former followers of Shin.
Zakai (Lightning, Loyalty, Mercy) (Envy, Aether, Strength)
Vijer: Vijer, known as the Protector, the daughter of Coranthiir and Illeni, is the largest rival of Daimonais and the former 9th-ranked Greater Deity before the War of the Gods.
Vijer (Air, Archery, Intelligence) (Protection, Aether, Peace)
Timeus: The son of Liagora and Shin, Timeus is an ally of Bree and is the god prayed to before battle. It is said that he keeps the souls of warriors lost to the sea, and is friendly with Zakai and Vijer so that the three may control the weather and seasons.
Timeus (Water, Victory, Fear) (War, Death, Honor)
Uayli: Known as the Plaguebringer, Uayli is the result of a union between Aphilam and Sanoci. She is allied with both her parents, as well as with Kuro and Daimonais, and defines all other gods as hostile unless it becomes mutually profitable to ally.
Uayli (Poison, Disease, Insanity) (Death, Pain, Chaos)
Eyilana: The child of Yupoli and Arnum, Eyilana takes after Chelan and remains neutral towards all, too concerned with divining the future, maintaining ruins and dungeons, as well as libraries. Her followers are usually fortunetellers, librarians, and diviners.
Eyilana (Divination, Secrets, Books) (Magic, Wisdom, Poetry)
Minkah: The child of Bree and Arnum, Minkah is followed by prisoners, soothmancers, adjuticators, and a sect of mages who treat the mentally unfit.
Minkah (Dreams, Hope, Truth) (Divination, Alchemy, Justice)
Aroha: Aroha, the second child of Malu and Camille, takes after her mother and is usually worshipped by midwives, farmers, and mothers.
Aroha (Earth, Love, Wealth) (Light, Fertility, Death)
Marika: Marika is followed by artists, writers, and courtesans. A decadent god, Marika is generally cruel and draws the ire of Bree frequently.
(Beauty, Art, Innocence) (Wealth, Love, Greed)
Halloran: Halloran, also known as the Betrayer, was a former ally of Coranthiir - after the War of the Gods, Halloran turned to evil and followed Aphilam. He is worshipped by bounty hunters, abusive parents, executioners, and torturers.
Halloran: (Hate, Wrath, Alcohol) (Healing, Pain, Blood)
Malaquai: The child of Bree and Timeus, Malaquai's followers are usually warlike and poetic soldiers who have lost companions to war, widows, orphans, and the like. It is said that a follower of Malaquai will take a life for every fallen tear in a war. He is friendly towards his parents and grandparents, and will usually side with the forces of Good in a battle.
Malaquai (Sorrow, Poetry, Misery) (Blood, Weapons, Music)
Pellegrin: The elder child of Malu and Camille before their estrangement, Pellegrin is popular among sailors and deep elves. Little is known of this god, although he is known to be a solid ally of Vijer.
Pellegrin (Travel, Maps, Ocean) (Protection, Music, Wealth)
Arethusa: Eyilana and Malu's child, Arethusa is known as the Weaver - she is followed by many tradesmen and is often considered the god of high society despite not actually having power in those ways.
Arethusa (Color, Clothing, Comfort) (Protection, Lust, Strength)
Pantxike: Pantxike is the only other god aside from Eyilana who is friendly with all of the gods. The weakest of all, Pantxike is known as a prankster and is followed by actors, chefs, prostitutes, and gypsies.
If anyone else wants to add their trifecta of gods, feel free; if not, don't worry, some religion will eventually come along.
Yes. Think along the lines of flintlocks, muskets, and early rifles.