Ehnes began violin studies at the age of five, became a protégé of the noted Canadian violinist Francis Chaplin aged nine, and made his orchestra debut with L’Orchestre symphonique de Montréal aged 13. He continued his studies with Sally Thomas at the Meadowmount School of Music and The Juilliard School, winning the Peter Mennin Prize for Outstanding Achievement and Leadership in Music upon his graduation in 1997. He is a Fellow of the Royal Society of Canada and in 2010 was appointed a Member of the Order of Canada. Ehnes was awarded the 2017 Royal Philharmonic Society Award in the Instrumentalist category.