Cognomen Koča (コチャ 
, Koča 
, Коча 
) , all over the world, is a rare family name. The cognomen Koča is characteristic of Eastern Europe, particularly Czechia, where it is a rare surname, Ukraine, and Russia. Much less frequently, Koča is the forename as well as the last name.
| györgy koča (Georg, Gjuro) (*1853-00-00—†1924-09-03) (b. 1853) |
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| djuro koča (b. 1853) |
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| sofija koča (b. 1870) |
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| vladimir kolarov koča (b. 1914) |
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| václav koča (b. 1920) |
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| jaroslav koča researcher, CZ (b. 1955) |
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