| Tampa to Olympia (Washington) | 2,538.13 mi (4,084.73 km) |
| Tampa to Olympia Heights (Florida) | 203.61 mi (327.67 km) |
| Tampa to Omaha (Nebraska) | 1,196.48 mi (1,925.54 km) |
| Tampa to On Top of the World Designated Place (Florida) | 77.38 mi (124.53 km) |
| Tampa to Onalaska (Wisconsin) | 1,200.86 mi (1,932.60 km) |
| Tampa to Oneida (New York) | 1,108.69 mi (1,784.26 km) |
| Tampa to Oneonta (New York) | 1,081.34 mi (1,740.25 km) |
| Tampa to Ontario (California) | 2,112.81 mi (3,400.24 km) |
| Tampa to Ontario (Oregon) | 2,201.97 mi (3,543.73 km) |
| Tampa to Opa-locka (Florida) | 197.82 mi (318.36 km) |
| Tampa to Opelika (Alabama) | 366.76 mi (590.24 km) |
| Tampa to Opelousas (Louisiana) | 606.39 mi (975.89 km) |
| Tampa to Orange (California) | 2,124.75 mi (3,419.45 km) |
| Tampa to Orange (Texas) | 698.75 mi (1,124.53 km) |
| Tampa to Orange City (Florida) | 95.69 mi (153.99 km) |
