Harry Mack (1902-1985) was a Southern Nevada businessman and a founder of the Jewish community in Las Vegas, Nevada. He came to Las Vegas in 1937 with his brothers Louis and Nathan "Nate" Mack. He invested in land and commercial properties and owned Main Auto Parts and a builders supply store. Mack and his brothers were founders of the Las Vegas Jewish Community Center, built in 1946, and board members of B'nai B'rith in Las Vegas.
Harry Mack was born December 6, 1902 in Mielec, Poland. Before moving to Las Vegas, he lived in Detroit, Michigan and Albion, Michigan, where he owned a shoe store with his brothers. From Albion the brothers moved to Los Angeles, California and opened a food market in the San Fernando Valley. Harry Mack moved to Boulder City, Nevada next, where he and his brother Louis had a shoe store and a business that transported salvaged materials from Boulder City to Las Vegas. In 1937 all three brothers moved to Las Vegas. Harry Mack married Rose Lockitch in 1962. He died May 1, 1985.