Elna Mygdal (1868–1940) was a Danish textile artist, museum curator and writer. She is remembered in particular for her interest in Hedebo embroidery and for her collection of folk costumes and folk textiles. In 1930, she published the authoritative two-volume Amagerdragter: vævninger og syninger on the history of costumes and textiles from Amager, an island adjacent to Copenhagen.