Family name Trayer (Trayer 
, Traier 
) , around the world, is quite a rare cognomen. The last name Trayer is habitual in Qatar, where it is a rare surname, Ireland, and Hungary. Measured by absolute frequency, it is commonest in the United States, Germany, and Canada. Very seldom, Trayer is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Trayer | United Kingdom, Ireland, Canada, Germany, United States |
| Traier | Romania, Germany, Qatar, United States, Hungary |
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jean-baptiste jules trayer French genre painter, FR (b. 1824) |
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katherine trayer American vaudeville performer |
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| hans dieter trayer German actor, DE (b. 1941) |
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| james sheldon trayer United States Navy officer and Navy Cross recipient |
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| james trayer researcher |
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