La De Da (spelled various ways) is a derisive term for pretentious refinement or affected gentility

La De Da (and variant spellings) may also refer to:

• "La Di Da Di", a 1985 song by Doug E. Fresh
• "La Di Da", a 2020 song by Everglow
• "La De Da", a song by Ringo Starr on the album Vertical Man
• La Di Da, a song by Lennon Stella
• "La de da de da de da de day oh", a 2018 song by Bill Wurtz
• "La Di Da", a song by The Internet
• "My Heart Goes (La Di Da)", a song by Becky Hill and Topic

• La De Da (album), by Joel Plaskett
• Lah-Di-Dah, a 1991 album by Jake Thackray
• La Di Da Di, a 2015 album by Battles

• La De Da (music festival), an annual music festival held in New Zealand
• The La De Da's, a New Zealand rock band