Cognomen Olgeirsson (Olgeirsson 
) , globally, is a rare surname. The cognomen Olgeirsson is habitual in Iceland, where it is quite a common surname, Norway, where it is a very rare surname, and Indonesia. Measured by absolute frequency, the name is most common in Iceland, Indonesia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Olgeirsson | Norway, Iceland, United Kingdom, United States, Indonesia |
|
einar olgeirsson Icelandic politician (1902-1993), IS (b. 1902) |
|
| björn olgeirsson Icelandic alpine skier, IS (b. 1962) |
|