A clan and/or guild is a group of players that have formed a sort of team to play a multiplayer version of a game. They often play together, helping each other to improve. Clans often compete against each other, whether informally, as an impromptu match, or in organized leagues and tournaments.

Some clans are open and always looking for new players, others require you to be invited from a member. Clan members often put a "tag" in their player name, with a combination of symbols and letters, to indicate which clan they are a part of.

This category contains clans that play multiple numbers of Star Trek games and links to categories to clans of specific Star Trek games.