Maro Ajemian (Armenian: մարո աձեմիան; July 9, 1921 – September 18, 1978) was an American pianist.

She became known as a contemporary pianist after performing the U.S. premiere of Aram Khachaturian's Piano Concerto, which she chose to play based on their shared Armenian heritage.

On March 14, 1942, she gave the American premiere of Aram Khachaturian's Piano Concerto in D flat with the Juilliard Graduate Orchestra under Albert Stoessel.

[1] Among these were John Cage, Alan Hovhaness, Henry Cowell, Ernst Krenek, Lou Harrison, and Gunther Schuller.

These concerts were well reviewed by such critics as Lou Harrison, Virgil Thomson, and Olin Downes, and served to launch Hovhaness into the national spotlight.