Valdimar Jóhannsson (born 28 April 1978) is an Icelandic film director and screenwriter.

[3] He has worked in various filmmaking jobs, including grip, lighting, cinematographer and effects technician[4][5] on projects including Rogue One, The Secret Life of Walter Mitty, LazyTown, Amundsen, Game of Thrones, and Prometheus.

From 2013 to 2015 he participated in the PhD program at Béla Tarr's Film Factory in Sarajevo.

[7][8][9][10][11] Lamb swept the board at the 2022 Edda Awards, winning 12 titles, including Best Film and Best Screenplay for Valdimar.

[12][13] Lamb also won Un Certain Regard Prize for Originality in Cannes, the Nordic Council Film Prize, and was shortlisted for the Academy Award for Best International Feature Film.