ATP Newport 07/15 17:00 27 Steve Johnson v Donald Young 2-6,3-6
ATP Newport 07/13 18:35 26 Steve Johnson v Yuichi Sugita 6-1,6-4
Wimbledon 07/04 12:00 26 Roger Federer v Steve Johnson 6-2,6-3,7-5
Wimbledon 07/01 18:30 25 Steve Johnson v Grigor Dimitrov 6-7,7-6,6-4,6-2
Wimbledon 06/29 17:15 24 Jeremy Chardy v Steve Johnson 1-6,6-7,3-6
Wimbledon 06/27 15:40 23 Malek Jaziri v Steve Johnson 5-7,6-7,4-6
French Open 05/23 14:30 23 Fernando Verdasco v Steve Johnson 7-5,6-4,7-5
ATP Geneva 05/18 10:00 26 Andrey Kuznetsov v Steve Johnson 7-5,6-4
ATP Geneva 05/16 16:00 25 Mikhail Youzhny v Steve Johnson 3-6,5-7
ATP Madrid 05/01 16:55 24 Alexandr Dolgopolov v Steve Johnson 3-6,6-3,7-6
ATP Houston 04/05 18:20 25 Steve Johnson v Donald Young 4-6,3-6
ATP Miami 03/27 15:00 25 Steve Johnson v Tomas Berdych 3-6,7-6,3-6
ATP Miami 03/25 21:25 24 Steve Johnson v Alexander Zverev 7-6,7-6
ATP Delray Beach 02/17 17:35 26 Steve Johnson v Benjamin Becker 7-5,6-7,3-6
ATP Delray Beach 02/16 17:20 25 Steve Johnson v John Millman 6-3,5-7,7-6
ATP Memphis 02/12 01:30 26 Taylor Fritz v Steve Johnson 7-6,7-6
Challenger Shanghai 10/14 07:40 25 Andy Murray v Steve Johnson 6-2,6-4
Challenger Shanghai 10/12 05:30 24 Steve Johnson v Andreas Seppi 4-6,6-1,7-6
Davis Cup 09/18 05:00 1 Denis Istomin v Steve Johnson 6-1,3-6,7-6,6-7,7-5
US Open 08/31 22:35 23 Fabio Fognini v Steve Johnson 2-6,6-3,6-4,7-6
ATP Cincinnati Qual 08/16 19:30 46 Steve Johnson v Nicolas Mahut 2-6,4-6
ATP Cincinnati Qual 08/15 20:25 45 Steve Johnson v James Duckworth 7-5,6-4
ATP Montreal 08/11 16:30 24 David Goffin v Steve Johnson 6-2,6-2
ATP Washington 08/08 23:00 28 John Isner v Steve Johnson 6-3,3-6,7-6
ATP Washington 08/08 01:10 27 Jack Sock v Steve Johnson 6-7,1-6
ATP Washington 08/06 22:40 26 Steve Johnson v Grigor Dimitrov 6-3,1-6,6-3
ATP Washington 08/05 21:45 25 Bernard Tomic v Steve Johnson 7-6,4-6,2-6
ATP Washington 08/04 20:00 24 Lukas Lacko v Steve Johnson 5-7,3-6
ATP Newport 07/15 16:35 26 Tatsuma Ito v Steve Johnson 6-4,6-4
ATP Newport 07/13 15:00 25 Michael Berrer v Steve Johnson 7-6,1-6,2-6

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.