Martha Ladly is a Canadian musician, designer and academic.

A student at the Ontario College of Art in Toronto, Canada, Ladly was invited to join Canadian New Wave band Martha & the Muffins in 1978. Upon accepting the offer, she became one of two vocalists and keyboard players named Martha in the band. The other Martha was Martha Johnson, who sang lead on the majority of the group's songs, including their biggest hit, 1980's "Echo Beach".

Ladly played with the band from 1978-80, and sang lead vocals on the group's seventh single, "Was Ezo", which she also co-composed. Ladly left the band in August 1980 and relocated to the United Kingdom where she lived with designer Peter Saville.

Ladly established a short-lived solo career in the early 1980s, issuing two singles ("Finlandia" and "Light Years From Love"). She also moved into visual arts and design [1]: her painting Factus 8 was used by Saville for the sleeve of New Order's EP 1981 - Factus 8 - 1982.

During her time in England, while pursuing her twin interests in music and visual art, Ladly became friends with a number of popular British musical acts. Orchestral Manoeuvres in the Dark credits Ladly for suggesting the titles of their 1981 hit album Architecture and Morality, and their 1984 hit single "Tesla Girls". In 1982, Ladly provided backing vocals on Roxy Music's album Avalon, and joined cult Scottish Post-punk act The Associates famously appearing with them on Top of the Pops when Alan Rankine fed a chocolate guitar to the audience. She left The Associates in 1986 and subsequently worked with Robert Palmer's band.