Wimbledon 07/01 10:30 24 Grigor Dimitrov v Steve Johnson 7-6,6-2,7-6
Wimbledon 06/29 14:25 23 Lukas Lacko v Steve Johnson 3-6,7-6,6-4,1-6,4-6
ATP Halle 06/17 10:00 26 Florian Mayer v Steve Johnson 6-3,7-6
ATP Halle 06/16 10:00 25 Steve Johnson v Bernard Tomic 6-3,7-6
ATP Madrid 05/06 15:00 25 Rafael Nadal v Steve Johnson 6-4,6-3
ATP Madrid 05/04 13:30 24 Alejandro Gonzalez v Steve Johnson 6-4,3-6,6-7
ATP Houston 04/08 21:05 26 Steve Johnson v Sam Querrey 1-6,6-4,0-6
ATP Houston 04/07 18:45 25 Donald Young v Steve Johnson 5-7,4-6
ATP Miami 03/26 15:00 23 Mikhail Kukushkin v Steve Johnson 6-4,3-6,6-2
ATP Delray Beach 02/21 01:00 27 Ivo Karlovic v Steve Johnson 6-2,7-6
ATP Delray Beach 02/18 23:00 26 Andrey Rublev v Steve Johnson 3-6,3-6
ATP Delray Beach 02/17 16:00 25 Mikhail Kukushkin v Steve Johnson Retired
ATP Memphis 02/13 21:35 27 Steve Johnson v Kevin Anderson 4-6,4-6
ATP Memphis 02/12 21:20 26 Steve Johnson v Dustin Brown 4-6,7-5,7-6
ATP Memphis 02/11 02:50 25 Steve Johnson v Filip Krajinovic 6-3,6-3
Challenger Shanghai 10/08 10:30 25 John Isner v Steve Johnson 7-6,7-6
Challenger Shanghai 10/07 05:00 24 Steve Johnson v Andrey Golubev 6-3,1-6,6-3
US Open 08/27 19:40 23 Steve Johnson v Tatsuma Ito Retired
ATP Cincinnati 08/14 18:55 26 Milos Raonic v Steve Johnson 6-7,6-3,7-6
ATP Cincinnati 08/13 22:05 25 Steve Johnson v Ernests Gulbis 6-4,6-4
ATP Cincinnati 08/12 23:00 24 Steve Johnson v Benoit Paire 6-4,6-1
ATP Washington 08/01 20:00 27 Steve Johnson v Milos Raonic 6-7,2-6
ATP Washington 07/31 20:00 26 Steve Johnson v Ivo Karlovic 3-6,7-6,7-6
ATP Washington 07/30 22:00 25 John Isner v Steve Johnson 7-6,3-6,6-7
ATP Washington 07/29 20:00 24 Steve Johnson v James Duckworth 6-3,7-6
ATP Newport 07/09 15:00 26 Tatsuma Ito v Steve Johnson Retired
ATP Newport 07/07 15:00 25 Clay Thompson v Steve Johnson 1-6,2-6
Wimbledon 06/23 14:05 23 Steve Johnson v Roberto Bautista-Agut 3-6,7-6,4-6,5-7
ATP Halle 06/13 14:30 27 Steve Johnson v Kei Nishikori 1-6,6-7
ATP Halle 06/12 14:00 26 Steve Johnson v Teymuraz Gabashvili Walkover

Steve Johnson Jr. (born December 24, 1989) is an American former professional tennis player.

He had a career-high singles ranking of world No. 21 achieved on July 25, 2016, and a doubles ranking of world No. 39 achieved on May 23, 2016. For one week in August 2016, Johnson was the top-ranked American in men's singles. He won four ATP Tour and nine ATP Challenger Tour titles, one at Nottingham on grass, twice at Houston on clay, and one at Newport on grass. He won a bronze medal in men's doubles at the 2016 Olympics with fellow American Jack Sock.

Johnson played college tennis for the USC Trojans. He won the NCAA Men's Singles Championship in his junior and senior seasons (2011–2012), and he was a part of a Trojan team that won four consecutive NCAA Championships.