Surname Ингвар (Ingvar 
, Yngvar 
, Ingvars 
) , worldwide, is a rare cognomen. The surname Ингвар is characteristic of Northern Europe, particularly Iceland, where it is quite a rare surname, Sweden, and Norway, where it is a rare surname. Measured by absolute frequency, it is commonest in Sweden, Spain, and Norway. More prevalently, Ингвар is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ingvar | Germany, Iceland, Denmark, Sweden, Norway |
| Yngvar | Germany, Spain, Sweden, United States, Norway |
| Ingvars | Latvia, United States |
| Ингвар | Russia, Kyrgyzstan, Ukraine |