| Kristján L. Möller | |
| Order: | Minister of Communications |
| Primeminister: | Geir Haarde, Jóhanna Sigurðardóttir |
| Term Start: | 24 May 2007 |
| Term End: | 2 September 2010 |
| Predecessor: | Sturla Böðvarsson (as Minister of Communications and Transportation) |
| Successor: | Ögmundur Jónasson (as Minister of Transport, Communications and Local Government) |
| Birth Date: | 26 June 1953 |
| Birth Place: | Siglufjörður, Iceland |
| Spouse: | Oddný Hervör Jóhannsdóttir |
| Children: | Three sons (b. 1979, 1983, 1988) |
| Relatives: | Alma Möller (sister) |
| Party: | Social Democratic Alliance |
Kristján Lúðvík Möller (born 26 June 1953) is an Icelandic politician. He has been Iceland's Minister of Communications from 2007 to 2010, and a member of the Althing (Iceland's parliament) from 1999 to 2016, for the Northwest Iceland constituency (1999–2003) and the Northeast Iceland constituency (2003–2016). He is the older brother of Alma Möller.