Alexey Gennadyevich Aigui (Russian: Алексей Геннадьевич Айги; Chuvash: Ahekh Aleksen Gennadievic, Aihi Alexey Gennadievic), born July 11, 1971 in Moscow, is a composer and violinist, conductor of Ensemble 4'33 ".

He studied at the Ippolitov-Ivanov School of Music and studied the principles of composition. In 2001 he collaborated with Pierre Bastien and produced the CD La Musique Cyrillique.