Last name Quatre (Kat 
, Kotra 
, Cater ) , across the world, is a common cognomen. The cognomen Quatre is habitual in Seychelles, where it is a common surname, Slovenia, where it is quite a rare surname, and Malaysia. Measured by absolute frequency, it is commonest in India, the United States, and Myanmar. Also, Quatre is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kat, Cater | Myanmar, Malaysia, India, Australia, United States |
| Kotra | Turkey, Malaysia, India, United States, United Kingdom |
| Quatre | France, United States, United Kingdom, Algeria, Morocco |
Catre, Cwate, Kaet, Qatre, Quate, Quatre-Vingts, Vint-I-Quatre, and สี่เหลี่ยม
| quatre sou quatre Chadian politician, TD (b. 1904) |
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| christian quatre French politician, FR (b. 1958) |
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| b.d. de quatre botanist |
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