星际舰队（Starfleet），是影视片集星空奇遇记中星际联邦的正规军队及外太空探索部队。

在片集中，星际舰队为星联的主力军队，舰队的任务主要为增加星联对银河系和各种族的了解、担当国防及外交职位和增进联邦科技实力。而于紧急情况下才会发动战争或主动攻击敌人。星际舰队也奉行「最高指导原则」，绝不主动接触，甚至攻击前曲速文明。因此，星际舰队被称为「维和舰队」及「人道舰队」。

Starfleet is a fictional organization in the television and film franchise Star Trek. Within this fictional universe, Starfleet is a service maintained by the United Federation of Planets ("the Federation") as the principal means for conducting deep-space exploration, research, defense, peacekeeping, and diplomacy. While the majority of Starfleet's members are human and it is headquartered on Earth, hundreds of other species are also represented, including the majority of the franchise's protagonists.