Surname Širc (Širc 
) , in all the world, is a very rare cognomen. The family name Širc is characteristic of Eastern Europe, particularly Czechia, where it is a rare surname.
| václav širc CZ (b. 1919) |
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| jan širc CZ (b. 1934) |
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| josef širc Czechoslovak rower |
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| maria širc Polish Righteous Among the Nations, PL |
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| vladimír širc Czechoslovak rower |
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| jan širc researcher (b. 1981) |
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