| Ottawa Municipal Airport | |
| Icao: | KOWI |
| Faa: | OWI |
| Type: | Public |
| Owner: | City of Ottawa |
| Location: | Ottawa, Kansas |
| Elevation-F: | 966.4 |
| Elevation-M: | 294.6 |
| Coordinates: | 38.5389°N -95.2528°W |
| Pushpin Map: | USA Kansas |
| Pushpin Map Caption: | Location of airport in Kansas |
| Pushpin Label: | KOWI |
| R1-Number: | 17/35 |
| R1-Length-F: | 4,500 |
| R1-Length-M: | 1,372 |
| R1-Surface: | Concrete |
| R2-Number: | 13/31 |
| R2-Length-F: | 1,785 |
| R2-Length-M: | 544 |
| R2-Surface: | Turf |
Ottawa Municipal Airport is in Ottawa, Kansas, United States, four miles south of Ottawa at 2178 Montana Road.
The airport opened in April 1946. It serves small business jets.
There are two buildings at the airport, and aircraft are stored outside. There is a tiedown hangar, likely replacing the old main hangar that was destroyed on July 8, 2009.
Besides the main runway, there is a grass runway (13/31).