Roger the Engineer (originally released in the UK as Yardbirds and in the US, Germany, France and Italy as Over Under Sideways Down) is the only UK studio album and third US album by English rock band the Yardbirds. Recorded and released in 1966, it is also the only Yardbirds album with guitarist Jeff Beck on all tracks and it contains all original material. It was produced by bassist Paul Samwell-Smith and manager Simon Napier-Bell.

Tracklist:
1. Lost Women
2. Over, Under, Sideways, Down
3. The Nazz Are Blue
4. I Can't Make Your Way
5. Rack My Mind
6. Farewell
7. Hot House of Omagararshid
8. Jeff's Boogie
9. He's Always There
10. Turn Into Earth
11. What Do You Want
12. Ever Since the World Began