It's My Party may refer to:
- "It's My Party" (Lesley Gore song), a 1963 number-one single, covered by Dave Stewart and Barbara Gaskin
- "It's My Party" (Jessie J song), a 2013 single
- It's My Party (film), a 1996 film
- It's My Party!, an American girl group
- "It's My Party", a song by Bret Michaels from his album Songs of Life
- It's My Party (tour), a 2019 concert tour by Jennifer Lopez