Around the globe, Hreinsson (Hreinsson 
) is an extremely rare unknown gender given name. Much more prevalently, Hreinsson is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Hreinsson | Denmark, Germany, Norway, Sweden, Iceland |
| páll hreinsson Icelandic lawyer, university lecturer and EFTA judge, IS (b. 1963) |
|
|
| ellert hreinsson association football player (b. 1986) |
|
Mr, Rúnar, Gunnar, Jónas, Ellidi, Ellert, Haukur, Hilmar, Hilmir, Hreinn, Hlidar, Vignir, Ingvar, Ásmundur, Sigurã, Sigurvin, Steinþór, Snaevar, Brynjar, Kjartan, Pálmar, Grettir, Pétur, Birkir, Sveinn, Stefan, Ben, Pã, Rã, Jon, Atli, Bogi, Kari, Karl, Guã, Logi, Jóhannes, Arnar, Gauti, Gudni, Torfi, Elvar, Einar, Egill, Hlynur, Óskar, Magnús, Magnã, Páll, and Tryggvi