Family name Pieren (Peer 
, Pieren 
) , in all the world, is a common surname. The cognomen Pieren is characteristic of Austria, where it is quite a common surname, Mauritius, and Switzerland, where it is quite a rare surname. In absolute terms, it most frequently occurs in India, the United States, and Pakistan. More prevalently, Pieren is the forename as well as the last name.
| hermann pieren (1910-2002), CH (b. 1910) |
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nadja pieren Swiss politician, CH (b. 1980) |
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| hans pieren Olympic alpine skier, CH (b. 1962) |
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| milco pieren Dutch association football player, NL (b. 1971) |
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| reto pieren researcher |
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| agustín p. pieren researcher ORCID ID = 0000-0001-8783-2368 |
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| daan k j pieren researcher |
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| tanja pieren |
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