Last name Willich (Willich 
, Виллих 
) , throughout the world, is quite a rare cognomen. The family name Willich is habitual in Germany, where it is a rare surname, Switzerland, and Poland. Measured by absolute frequency, this name is the most popular in Germany, the United States, and Poland. Much less frequently, Willich is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Willich | Germany, Switzerland, United States, Poland, Argentina |
| Виллих | Russia |
|
jodocus willich German physician and writer, DE (b. 1501) |
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| martin willich German archdeacon and theologian, DE (b. 1583) |
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| willich westhov (b. 1577) |
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| jodocus willich (b. 1617) |
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| martin willich (b. 1643) |
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| georg wilhelm von willich German judge and jurist, DE (b. 1718) |
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| christian ludwig willich botanist (b. 1718) |
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| philipp georg von willich German provost, DE (b. 1720) |
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| michael lorenz willich (b. 1715) |
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friedrich justus willich DE (b. 1789) |
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| moritz von willich German writer (1750-1810), DE (b. 1750) |
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| friedrich christoph willich (b. 1745) |
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| heinrich christoph von willich (1759-1827), DE (b. 1759) |
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august willich Union Army General (1810-1878), DE (b. 1810) |
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| carl willich (b. 1758) |
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