30 Seconds or Thirty Seconds may refer to:

30 Seconds (game), a general-knowledge board game 30 Seconds (TV series), an Australian comedy series "30 Seconds" (Alias), a television episode "30 Seconds", a song by Tracy Bonham from The Burdens of Being Upright

See also Thirty Seconds Over Tokyo, 1944 American war film Thirty Seconds Over Winterland, 1972 album by the American psychedelic rock band Jefferson Airplane Thirty Seconds of Love, 1936 Italian romantic comedy film Thirty Seconds to Mars, American rock band