Martin Ehala (born 20 December 1963) is an Estonian linguist and sociolinguist whose work has focused on the Estonian language environment, language ecology, language policy, and ethnolinguistic vitality, as well as language education and collective identity. He has held academic posts at Tallinn University and the University of Tartu, and has served on national advisory bodies such as the Estonian Language Council (Eesti keelenõukogu).
In 2018, Ehala received EstoniaâÂÂs state research award in the humanities for research described as developing an identity âÂÂsign theoryâ (identiteedi märgiteooria) based on studies of the Estonian language environment.
Ehala completed a degree in Estonian language and literature at Tallinn Pedagogical University in 1990. He received a master's degree in linguistics from the University of Cambridge in 1992 and a PhD in linguistics from Cambridge in 1996.
He worked at Tallinn University (including its predecessor Tallinn Pedagogical University) from 1990 to 2007, including serving as dean and later as professor in general and applied linguistics. From 2008 he has worked at the University of Tartu, including in the Institute of Estonian and General Linguistics (eesti ja üldkeeleteaduse instituut).
EhalaâÂÂs research has addressed language change and the structure of Estonian, as well as language policy, the Estonian language environment, and ethnolinguistic vitality; an Estonian encyclopaedia biography credits him with developing a mathematical model for assessing vitality. Institutional profiles have also described his work in language ecology and identity in relation to the sustainability of Estonian in a globalising context.
His English-language monograph Signs of Identity: The Anatomy of Belonging was published by Routledge and attracted peer-reviewed reviews in international journals.
In 2011, Ehala and Peeter Tinits presented Sõnar, a smartphone application designed to help users check Estonian orthography and find relevant usage rules.
Ehala has also contributed to Estonian public debate on language and culture, including through interviews and commentary in major Estonian media outlets.
Ehala has served on EstoniaâÂÂs Research Competence Council (Teaduskompetentsi Nõukogu), including as a member appointed by government order in 2006 and again in 2009.
He has also been a member of the Estonian Language Council (Eesti keelenõukogu), a governmental advisory body on language policy.
In scholarly publishing, bibliographic records for the Estonian Academy of Sciences list Ehala among the editors of the interdisciplinary journal Trames during its early years following its 1997 relaunch.