Mariam Kevkhishvili Machavariani (Georgian: მარიამ ქევხიშვილი; born 17 September 1985 in Gardabani) is a Georgian shot putter.
Kevkhishvili attended the University of Florida in Gainesville, Florida, where she was a member of coach Mike Holloway's Florida Gators track and field team. She graduated from the university with a bachelor's degree in sociology in 2011.
She finished tenth at the 2005 Summer Universiade. In addition she competed at the Olympic Games in 2004 and 2008 without reaching the final round.
Her personal best throw is 17.60 metres, achieved in April 2008 in Gainesville, Florida. She has 17.83 metres on the indoor track, achieved in March 2008 in Fayetteville, Arkansas.