Definitely Maybe is the debut studio album by English rock band Oasis, released in August 1994 by Creation Records. It was an immediate commercial and critical success in the UK, having followed on the heels of singles "Supersonic", "Shakermaker" and "Live Forever". It is the only full album to feature original drummer Tony McCarroll.

Definitely, Maybe is a 2008 American romantic comedy-drama film written and directed by Adam Brooks, and starring Ryan Reynolds, Isla Fisher, Rachel Weisz, Elizabeth Banks, Abigail Breslin and Kevin Kline. Set in New York City during the 1990s, the film is about a political consultant who tries to help his eleven-year-old daughter understand his impending divorce by telling her the story of his past romantic relationships and how he ended up marrying her mother.

Definitely Maybe is a 1994 album by Oasis.