Tuomioja is a Finnish surname. It may refer to:
- Erkki Tuomioja (born 1946), Minister for Foreign Affairs of Finland
- Sakari Tuomioja (1911–1964), Finnish politician
- Walto Tuomioja (1888-1931), Finnish lawyer, journalist and politician
- Tuomioja (village), Satakunta region, Finland
|This disambiguation page lists articles associated with the title Tuomioja.
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