1970 First National Tennis Classic – Singles

The 1970 First National Tennis Classic – Singles was an event of the 1970 First National Tennis Classic men's tennis tournament and was played at the Louisville Tennis Center in Louisville, Kentucky in the United States from July 29 through August 3, 1970. The draw consisted of 16 players. Rod Laver won the singles title, defeating John Newcombe in the final, 6–3, 6–3.