Kazimieras Garšva (born November 11, 1950, in Linkuva, near Pakruojis) is a Lithuanian linguist, and the leader of the cultural "Vilnija" organisation.
In 1977 he received a Ph.D. for his doctoral thesis "Priegaidės fonologinėje sistemoje (remiantis lietuvių kalbos medžiaga)" (Pitch accents in the phonetic system (using Lithuanian language material)).
He has authored more than 100 scientific publications and 5 books[citation needed].
Garšva is a coauthor of Grammar of Contemporary Lithuanian Language, published in three successive editions.
In 2016 he was presented with the Cross of the Knight of the Order for Merits to Lithuania.