ATP Winston-Salem 08/24 19:00 27 [46] Steve Johnson v Kyle Edmund [45] 7-5,3-6,3-6
ATP Winston-Salem 08/23 19:00 26 [46] Steve Johnson v Carlos Berlocq [96] 7-6,6-4
ATP Winston-Salem 08/22 20:30 25 [46] Steve Johnson v Yen-Hsun Lu [61] 6-4,6-3
ATP Cincinnati 08/15 17:40 24 [37] Steve Johnson v David Ferrer [31] 1-6,7-5,3-6
ATP Montreal 08/07 18:30 24 [35] Steve Johnson v Gael Monfils [22] 6-2,6-7,1-6
ATP Washington 08/03 02:45 25 [34] Steve Johnson v Daniil Medvedev [50] 6-3,4-6,6-7
Wimbledon 07/07 12:00 25 [31] Steve Johnson v Marin Cilic [6] 4-6,6-7,4-6
Wimbledon 07/05 14:30 24 [31] Steve Johnson v Radu Albot [108] 6-3,6-3,4-6,6-3
Wimbledon 07/03 17:20 23 [31] Steve Johnson v Nicolas Kicker [94] 6-4,7-5,6-3
ATP Eastbourne 06/29 13:30 27 [31] Steve Johnson v Daniil Medvedev [52] 3-6,6-2,3-6
ATP Eastbourne 06/28 14:45 26 [31] Steve Johnson v Thomas Fabbiano [95] 6-3,5-7,6-4
ATP Queens 06/20 11:30 25 [25] Steve Johnson v Stefan Kozlov [149] 6-3,1-6,1-6
ATP Stuttgart 06/14 11:30 26 [25] Steve Johnson v Philipp Kohlschreiber [52] 6-7,7-5,6-7
ATP Stuttgart 06/12 09:00 25 Steve Johnson v Maximilian Marterer 3-6,7-6,6-4
French Open 06/02 11:40 25 [7] Dominic Thiem v Steve Johnson [26] 6-1,7-6,6-3
French Open 05/31 09:00 24 [40] Borna Coric v Steve Johnson [26] 2-6,6-7,6-3,6-7
French Open 05/28 16:50 23 [77] Yuichi Sugita v Steve Johnson [26] 3-6,3-6,7-6,7-6,3-6
ATP Geneva 05/25 11:15 27 [26] Steve Johnson v Mischa Zverev [33] 4-6,5-7
ATP Geneva 05/24 11:20 26 [26] Steve Johnson v Horacio Zeballos [64] 6-1,6-3
ATP Geneva 05/23 14:40 25 [26] Steve Johnson v Stephane Robert [113] 6-3,6-3
ATP Houston 04/16 19:00 29 [29] Steve Johnson v Thomaz Bellucci [65] 6-4,4-6,7-6
ATP Houston 04/15 20:10 28 [16] Jack Sock v Steve Johnson [29] 6-4,4-6,3-6
ATP Houston 04/14 22:25 27 [29] Steve Johnson v Fernando Verdasco [31] 6-2,6-4
ATP Houston 04/13 19:40 26 [29] Steve Johnson v Dustin Brown [75] 7-6,6-4
ATP Miami 03/24 21:10 24 [28] Steve Johnson v Nicolas Mahut [55] 4-6,7-5,4-6
ATP Indian Wells 03/14 23:50 25 [27] Steve Johnson v Roger Federer [10] 6-7,6-7
ATP Indian Wells 03/12 23:55 24 [27] Steve Johnson v Kevin Anderson [79] 6-4,3-6,7-6
ATP Acapulco 03/02 22:00 27 Steve Johnson v Marin Cilic Walkover
ATP Acapulco 03/02 02:15 26 Steve Johnson v Ernesto Escobedo 7-6,6-3
ATP Acapulco 02/28 00:00 25 [22] John Isner v Steve Johnson [26] 4-6,4-6

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.