Plus One may refer to:
Arts, entertainment, and media Plus One (2008 film), a Russian comedy film Plus One (2019 film), an American romantic comedy film Plus One (band), a Christian pop band Plus One: The Home Video, 2001 Plus One (DJ), one member of Jack Beats, an English electronic-music duo from London Plus One (TV series), a British sitcom "Plus One" (Call Me Kat), a 2021 television episode "Plus One" (Drifters), a 2015 television episode "Plus One" (The X-Files), a 2018 television episode
Other uses Acorn Plus 1, an expansion for the Acorn Electron home computer Plus-One system, a suggested change to the college football championship format in the United States
See also +1 (disambiguation) OnePlus, a Chinese smartphone manufacturer PLOS One, a scientific journal TV One Plus 1, a time-shifted repeat of the New Zealand channel TV One