| Ooh-Wakka-Doo-Wakka-Day | |
| Type: | single |
| Artist: | Gilbert O'Sullivan |
| B-Side: | But I'm Not |
| Released: | 1972 |
| Recorded: | 1972 |
| Genre: | Pop |
| Length: | 2:45 |
| Label: | MAM Records |
| Producer: | Gordon Mills |
| Chronology: | Gilbert O'Sullivan |
| Prev Title: | Alone Again (Naturally) |
| Prev Year: | 1972 |
| Next Title: | Clair |
| Next Year: | 1972 |
"Ooh-Wakka-Doo-Wakka-Day" is a 1972 song by Gilbert O'Sullivan. The song became a top ten hit in the UK, peaking at #8 on the UK Singles Chart,[1] spending a total of 11 weeks on the chart.[2] It was also the first of three (consecutive) #1s on the Irish Singles Chart for O'Sullivan.[3]
The song was never released on a studio album, but in 2012 it was added to a remastered version of Back to Front.[4]
In 2013, a single-purpose version of the song which featured 300 people singing a reworded version of the song whilst going about their daily lives was used for an advert for the National Lottery.[5]