Last name Riha (Riha 
, Риха 
) , all around the world, is a common family name. The surname Riha is habitual in Czechia, where it is quite a common surname, Austria, where it is quite a rare surname, and Slovakia. Measured by absolute frequency, it is commonest in Czechia, the United States, and Bangladesh. Very seldom, Riha is the forename as well as the last name.
| joseph riha (b. 1848) |
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manfred riha Austrian journalist and radio host, AT (b. 1956) |
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| hans riha AT (b. 1910) |
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| friedrich riha AT (b. 1910) |
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| fritz riha Austrian journalist, AT (b. 1921) |
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| carl riha Austrian director, AT (b. 1923) |
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| emilie riha CH (b. 1921) |
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| gertrude riha (b. 1921) |
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| karl riha German author and literary scholar, DE (b. 1935) |
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| georg riha Austrian film director, AT (b. 1951) |
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| antonia riha AT (b. 1943) |
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| susanne riha Austrian illustrator, AT (b. 1954) |
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| monika riha Austrian politician, AT (b. 1956) |
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| jelica šumič riha Slovenian philosopher, SI (b. 1958) |
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| ortrun riha German specialist in literature, DE (b. 1959) |
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