Kustas
| Gender | Male | 
|---|---|
| Language(s) | Estonian | 
| Name day | 28 August | 
| Origin | |
| Region of origin | Estonia | 
| Other names | |
| Related names | Gustav, Kustav, Kusti, Kusto | 
Kustas is an Estonian masculine given name; a cognate of the Nordic given name Gustav, which is also found in Estonia. Other variants and diminutives of Kustas found in Estonia include Kustav, Kusti, and Kusto.
As of 1 January 2021, Kustas was the 1,095th most popular male name in Estonia.
Individuals bearing the name Kustas include:
- Kustas Kikerpuu (1937–2008), composer, jazz musician and conductor
- Kustas Köidam (1879–1963), politician
- Kustas Kotsar (1872–1942), writer and journalist
- Kustas Põldmaa (1897–1977), writer and conservationist
- Kustas Tonkmann (1882–1942), politician
- Kustas Utuste (1884–1941), military major