Lajla Mattsson Magga (born 4 November 1942) is a Southern Sami teacher, children's writer and lexicographer.
Married to fellow Sami linguist Ole Henrik Magga (born 1947), she lives in Kautokeino Municipality in the far northern Norwegian county of Finnmark.
She has a wide field of interest, comprising fiction and non-fiction, translation, teaching, acquisition of language material, and lexicography.
In addition to teaching South Sami in both Norway and Sweden, she has acted as an examiner for the Nord-Trøndelag University College.
Magga has carried out research on the South Sami language and its terminology, leading for example to the standardization of place names.