Last name Keij (Keij 
) , all around the world, is a rare cognomen. The surname Keij is habitual in Netherlands, where it is quite a rare surname, Belgium, where it is a rare surname, and Czechia. Very seldom, Keij is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Keij | Germany, Netherlands, Czechia, Belgium, Canada |
| a.m.p. keij NL (b. 1912) |
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| eelco keij Dutch politician, NL |
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| a. j. keij Dutch micropalaeontologist, NL |
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| adriaan jan keij |
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| sjors keij NL (b. 1984) |
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