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- Mark O'Connor
- Appalachia Waltz (composer's own transcription of original version for solo violin)
- Paul Rovsing Olsen
- Partita Op. 75
- Pablo Ortiz
- 1er et 2éme tangos finlandaises (2001–2002)
- Manzi - En cada verso (2004–2007)
- Mikhail Osokin
- Sonata for solo cello
- Matthew Owens
- Kol Nidrei (10 min) (1998)
- The Rowell Sonata (25 min) (1996)
- Terry Winter Owens
- Cellestial Music, Book 1 (2003)
Read more about this topic: List Of Solo Cello Pieces