- Billy Owens7,026 pts · 600 G · 11.7 PPG
- Bo Outlaw4,968 pts · 914 G · 5.4 PPG
- Cedi Osman4,427 pts · 475 G · 9.3 PPG
- Charles Oakley12,417 pts · 1,282 G · 9.7 PPG
- Don Ohl11,558 pts · 726 G · 15.9 PPG
- Doug Overton2,253 pts · 495 G · 4.6 PPG
- Emeka Okafor7,370 pts · 616 G · 12.0 PPG
- Greg Ostertag3,512 pts · 755 G · 4.7 PPG
- Hakeem Olajuwon26,946 pts · 1,238 G · 21.8 PPG
- Jermaine O'Neal13,309 pts · 1,009 G · 13.2 PPG
- Josh Okogie2,994 pts · 492 G · 6.1 PPG
- Kelly Olynyk8,272 pts · 841 G · 9.8 PPG
- Kelly Oubre Jr.9,401 pts · 703 G · 13.4 PPG
- Kevin Ollie2,496 pts · 656 G · 3.8 PPG
- Kyle O'Quinn2,568 pts · 471 G · 5.5 PPG
- Lamar Odom12,781 pts · 961 G · 13.3 PPG
- Louis Orr5,545 pts · 569 G · 9.7 PPG
- Mark Olberding8,147 pts · 865 G · 9.4 PPG
- Mehmet Okur8,561 pts · 633 G · 13.5 PPG
- Michael Olowokandi4,135 pts · 499 G · 8.3 PPG
- Mike O'Koren3,353 pts · 407 G · 8.2 PPG
- Royce O'Neale5,009 pts · 678 G · 7.4 PPG
- Shaquille O'Neal28,596 pts · 1,207 G · 23.7 PPG
- Tom Owens5,612 pts · 487 G · 11.5 PPG
- Travis Outlaw5,273 pts · 620 G · 8.5 PPG
- Victor Oladipo8,503 pts · 505 G · 16.8 PPG