Kristín Ómarsdóttir was born in Reykjavík; she spent her first years in Copenhagen and lived for most of her childhood in Hafnarfjörður.

She wrote her first play in 1985, which won her first prize in a playwriting competition run by The National Theater of Iceland.

[1] [2] In 2000, her novel Elskan mín ég dey was nominated for The Nordic Council Literature Prize.

[4] For the poetry book Sjáðu fegurð þína she was awarded Fjöruverðlaunin – the Icelandic Women's Literary Prize in 2008.

[5] The poetry book Kóngulær in sýningargluggum, 2017, was nominated to Nordic Counsel Literature Prize in 2019.