Kazimieras Motieka (12 November 1929 in Kaunas – 31 August 2021^[1]) was a Lithuanian politician and lawyer. In 1990 he was among those who signed the Act of the Re-Establishment of the State of Lithuania.

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He studied law in the graduate studies at the law faculty of Vilnius University. Motieka was Attorney at law at the law firm Motieka and Audzevičius.