Doo Dah, doo dahs, doodah or doodahs can refer to:
- the repeated line-ending of the lyrics of the 1850 song "Camptown Races"
- "DooDah!", 1998 song by Cartoons, inspired by "Camptown Races"
- Doo Dah Parade, held in Pasadena, California, US
- a placeholder name for an object, also doodad and doohickey
See also
- Bonzo Dog Doo-Dah Band
- "Zip-a-Dee-Doo-Dah"
- Duda (disambiguation)
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