Mesta Peak (, ) is a conspicuous, sharp and narrow rocky peak extending 500 m in east-west direction and rising to approximately 400 m in Delchev Ridge, Tangra Mountains, eastern Livingston Island in the South Shetland Islands, Antarctica. The peak has steep and ice-free slopes and surmounts the east extremity of Sopot Ice Piedmont to the north.
The peak is named after the Mesta River in Bulgaria.
The peak is located at , which is 1.53 km east-northeast of Kaloyan Nunatak, 1.5 km east of Besapara Hill, 1.05 km northeast of Shabla Knoll and 1.86 km southwest of Renier Point.