Marco Enrico Bossi was an Italian composer, organist, and pianist. He was born in 1853 in Brescia, Italy, and attended the Milan Conservatory, where he studied with Amilcare Ponchielli (composition) and Polibio Fumagalli (organ).

In 1890 he was appointed as professor of organ and harmony at Conservatory of Naples. In addition, he held directorships at conservatories in Venice (1895–1901), Bologna (1902–1911) and Rome (1916–1923).

Bossi was an accomplished organist and was particularly known for his performances of his own organ compositions. He composed over 150 works for organ, orchestra, chamber orchestra and choir.

Bossi died in 1925 at the age of 72.