God of Good

In many works, there is a God of Evil. An ultimate embodiment of evil that seeks to either spread unhappiness or kill as much as he/she wants.

This is the inverse of that, a deity that seeks to defeat evil and/or seeks to spread goodness. In most works with a God of Good, he/she will often (but not always) be the Big Good, guiding The Hero but not getting directly involved in his/her quest to defeat the Big Bad. In some cases, the god of good's role can be spreading good will or actively repairing that which has been tainted by evil or simply maintaining the world from plain old decay. It might seek to convert all to the setting's standard of goodness, warping hate into love, despair into hope, obsession into indifference where appropriate.

There is a tendency for Gods of Good to be female rather than male. Also, Beauty Equals Goodness (and by proxy Hot God) tends to come into play with this trope.

In many works, there is a conflict between the God of Good and the God of Evil. Often, as a take-off of Satan, the God of Evil is a rebellious underling of the God of Good.

Not in any way to be confused with God Is Good, which is when there is a single god who is good (though in most monotheistic faiths, God is given this title, and many others like it, so He actually still counts).

To avoid Flame Bait and Edit Wars, note that this trope isn't about gods who simply are good, it's about gods of goodness. Gods who are nice but mostly defined by other qualities do not qualify. If the god can, by the setting's definition, do evil without contradicting their very being, they don't count.

Comics

 * Highfather Izaya, the leader of the New Gods on New Genesis, and opposed to the God of Evil Darkseid.

Religion and Myth

 * In Christianity, Islam, Judaism and others, God is often referred to as God of Mercy, God of Love, God of Justice etc. And yes, sometimes God of Good or Goodness. Of course, he's the God of pretty much everything, but these are perhaps his most frequently invoked titles.
 * Japanese Mythology: Izanagi. He and his wife Izanami created the Japanese islands, but he became the god of life while Izanami became a goddess of death. Izanagi also sired Amaterasu (the sun), Tsukuyomi (the moon) and Susanoo (storms). He seems pretty close to god of good.
 * Greek Mythology: While most of the gods were fickle, ready to change their mind at a drop of a hat, Prometheus always acted on man's behalf, even if it causes him to suffer.
 * Hestia. Not only is she the most benevolent of the Olympians, she also rules over the hearth and family. As far as greek philosophers were concerned, the Sun god (Helios or Apollo) was this, though mythology depicts him quite differently...
 * Ra in Egyptian Mythology. Really, the whole mythology is essencially Protagonist-Centered Morality in regards to him, with his enemy Apophis being the only deity considered truly evil (even if Set was demonised).
 * Wadd from pre-islamic arabian mythology. He was the god of friendship.

Tabletop Games

 * Dungeons & Dragons has quite a few of these. Strictly speaking, a God of Good must have Good in his or her domain.
 * 4E's core pantheon has four of them - Bahamut, Pelor, Avandra and Moradin.
 * 3E's core pantheon had Heironeous, Moradin again, Yondalla, Pelor again, Garl Glittergold, Ehlonna, Corellon Larethian and Kord.
 * From Dragonlance: Branchala, Habbakuk, Kiri-Jolith, Majere, Mishakal, Paladine, Solinari
 * From the Forgotten Realms (and there's quite a list of them!): Chauntea, Lathander, the late Mystra, Selune, Sune, Torm, the late Tyr, Bahamut again, Mielikki, Tymora, Deneir, Eldath, Lliir, Lurue, Milil, and a host of others in other lands of Toril.

Video Games

 * The Goddess Palutena of Kid Icarus, the liege of Pit.
 * In the backstory of The Legend of Zelda Skyward Sword, the Goddess Hylia, whom the gods of the Triforce charged with guarding the Triforce from Demon King Demise.
 * From Dissidia Final Fantasy, Cosmos, the goddess of harmony and the leader of the heroes.
 * This is even more notable for the fact that the series is well known for it's portrayal of evil gods.
 * In the Mortal Kombat series, Raiden is shown as the leader of the forces of good and the guardian of Earthrealm, until he makes a Heroic Sacrifice in Deadly Alliance and Came Back Wrong in Deception.

Web Comics

 * There was a Goddess of Good in Sluggy Freelance who ruled over the not originally evil Dimension Of Pain. She got beaten and bagged by the resident God of Evil before Torg freed her.

Western Animation

 * Gaia, the Big Good of Captain Planet and the Planeteers. She is the spirit of the Earth and the protector of the planet.
 * To some extent, Princess Celestia from My Little Pony Friendship Is Magic. While her most explicit role is being the goddess of the sun, one of her roles as stated by the Mayor of Ponyville is being the "Bringer of Harmony".
 * The titular Avatar of Avatar: The Last Airbender is the human form of the spirit of the planet. The Avatar is charged with maintaining the peace between the four nations.