| U Krazy Katz | |
| Type: | single |
| Artist: | PJ & Duncan |
| Album: | Top Katz |
| Released: | October 1, 1995 |
| Recorded: | 1994–1995 |
| Label: | Telstar Records |
| Producer: | Ray Hedges |
| Prev Title: | Stuck On U |
| Prev Year: | 1995 |
| Next Title: | Perfect |
| Next Year: | 1995 |
"U Krazy Katz" is the eighth single by PJ & Duncan and the second to be taken from their second album Top Katz (1995). As a single, it was released on 1 October 1995 and reached number 15 on the UK Singles Chart.
The music video shows PJ & Duncan performing in a jazz club, which features a young David Walliams.