Teimuraz I (Georgian: თეიმურაზ I მუხრანბატონი, T'eimuraz I Mukhranbatoni) (16 July 1572 – 1 July 1625) was a Georgian tavadi ("prince") of the House of Mukhrani, a collateral branch of the royal Bagrationi dynasty of Kartli, and Prince (Mukhranbatoni) of Mukhrani from 1580 until his death. At the same time, he was an ex officio commander of the Banner of Shida Kartli and regent of Kartli, from 1623 to 1625, during the rebellion against Safavid Iran. Teimuraz was killed at the battle of Marabda against the Iranian punitive army.
Teimuraz was the eldest son of Vakhtang I by his wife, Khvaramze. Vakhtang's other known sons were Kaikhosro (died 3 October 1629) and Bagrat (born 16 July 1572). According to Cyril Toumanoff's hypothesis, Teimuraz and Bagrat were the same person, the latter being a name adopted by the prince on his accession to the lordship of Mukhrani. When his father died in 1580, the lordship of Mukhrani passed to the late prince's nephew and Teimuraz's uncle, Erekle I (died 1605), apparently, in the capacity of a regent for the underage Prince Teimuraz. During this period of time, Kartli was a battleground between the rivaling Muslim empires, the Ottomans and the Safavids. In 1582, Mukhrani itself became the scene of a major confrontation in which King Simon I of Kartli inflicted defeat on the invading Ottoman army.