Leslie Coleman McCann (born September 23, 1935) is an American jazz pianist and vocalist.

Les McCann was born in Lexington, Kentucky, United States. He grew up in a musical family of four, a brother and three sisters with most of McCann’s family singing in church choirs. His father was a fan of jazz music and his mother was known to hum opera around the house. As a youth, he played the tuba and drums and performed in his school’s marching band. As a pianist McCann, was largely self-taught. He explained he only received piano lessons for a few weeks as a six-year-old before his teacher died.