| Loimaan kunta | |
| Official Name: | Finnish: Loimaan kunta Swedish: Loimaa kommun |
| Settlement Type: | Former municipality |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location within Finland |
| Coordinates: | 60.8678°N 22.985°W |
| Subdivision Type: | Country |
| Subdivision Name: | Finland |
| Subdivision Type1: | Province |
| Subdivision Name1: | Western Finland |
| Subdivision Type2: | Region |
| Subdivision Name2: | Southwest Finland |
| Subdivision Type3: | Sub-region |
| Subdivision Name3: | Loimaa sub-region |
| Extinct Title: | Merged with Loimaa |
| Extinct Date: | January 1, 2005 |
| Seat: | Hirvikoski |
| Leader Title: | City manager |
| Unit Pref: | Metric |
| Area Total Km2: | 435.6 |
| Area Land Km2: | 434.08 |
| Area Water Km2: | 1.52 |
| Population Total: | 5991 |
| Population As Of: | 2002 |
| Population Rank: | 179th |
| Population Density Km2: | auto |
| Population Note: | -1.0 % change |
| Blank Name: | Official languages |
| Blank Info: | Finnish |
| Blank3 Name: | Climate |
| Blank3 Info: | Dfc |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Loimaan kunta (pronounced as /fi/; sv|Loimaa kommun; literally "Municipality of Loimaa", until 1921 Loimaa, 1921–1977 Loimaan maalaiskunta; sv|Loimaa landskommun) is a former municipality of Finland. It was merged to the town of Loimaa in the beginning of 2005.
It was located in the province of Western Finland and was part of the Southwest Finland region. The municipality had a population of 5,909 (2003) and covered an area of 434.08 km² of which 1.52 km² was water. The population density was 13.6 inhabitants per km².
The municipality was unilingually Finnish.