ATP - Winston-Salem 08/24 19:00 26 [115] Steve Johnson v Richard Gasquet [91] 7-6,4-6,3-6
ATP - Winston-Salem 08/23 21:25 25 [54] Pedro Martinez v Steve Johnson [115] 6-7,2-6
ATP - Winston-Salem 08/22 20:30 24 [200] Emilio Nava v Steve Johnson [115] 3-6,2-6
ATP - Cincinnati 08/14 17:30 19 [56] Jaume Munar v Steve Johnson [118] 3-6,6-3,6-4
ATP - Cincinnati 08/13 14:00 14 [118] Steve Johnson v Adrian Mannarino [70] 6-3,7-5
ATP - Los Cabos 08/05 02:25 27 [92] Steve Johnson v Felix Auger Aliassime [9] 4-6,6-7
ATP - Los Cabos 08/04 01:35 26 [75] Thanasi Kokkinakis v Steve Johnson [92] 7-6,4-6,4-6
ATP - Los Cabos 08/03 01:50 25 [279] Gonzalo Villanueva v Steve Johnson [92] 6-7,4-6
ATP Atlanta 07/27 23:00 26 [91] Steve Johnson v Ilya Ivashka [53] 6-4,2-6,4-6
ATP Atlanta 07/24 15:00 - [85] Steve Johnson v Peter Gojowczyk [93] 6-7,2-6
ATP Atlanta 07/23 14:00 26 Steve Johnson v Bruno Kuzuhara 4-6,7-6,6-3
ATP - Newport 07/14 15:00 27 [95] Steve Johnson v Maxime Cressy [41] 7-6,4-6,4-6
ATP - Newport 07/13 16:40 26 Jiri Vesely v Steve Johnson Walkover
ATP - Newport 07/11 18:40 25 [104] Stefan Kozlov v Steve Johnson [95] 5-7,3-6
Wimbledon 07/01 16:20 25 [12] Cameron Norrie v Steve Johnson [93] 6-4,6-1,6-0
Wimbledon 06/29 11:30 24 [135] Ryan Peniston v Steve Johnson [93] 3-6,2-6,4-6
Wimbledon 06/28 10:00 23 [93] Steve Johnson v Grigor Dimitrov [21] Retired
ATP - Eastbourne 06/19 13:30 19 [54] Brandon Nakashima v Steve Johnson [93] 6-4,6-4
ATP - Eastbourne 06/18 11:40 14 [227] Paul Jubb v Steve Johnson [93] 6-7,6-1,3-6
ATP - Queens 06/12 10:00 19 [231] Paul Jubb v Steve Johnson [87] 7-6,7-5
ATP - Queens 06/11 11:20 26 [111] Stefan Kozlov v Steve Johnson [87] 0-6,0-6
French Open 05/26 15:00 24 [158] Gilles Simon v Steve Johnson [92] 7-5,6-1,7-6
French Open 05/24 17:45 23 [73] Jiri Vesely v Steve Johnson [92] 7-6,6-7,3-6,2-6
Challenger - Tallahassee 04/19 19:55 25 [296] Zhizhen Zhang v Steve Johnson [97] 2-6,6-3,7-5
Challenger - Sarasota 04/17 16:00 29 [107] Steve Johnson v Daniel Elahi Galan [128] 6-7,6-4,1-6
Challenger - Sarasota 04/16 20:50 28 [82] Denis Kudla v Steve Johnson [107] 2-6,5-7
Challenger - Sarasota 04/15 20:35 27 [107] Steve Johnson v Mitchell Krueger [153] 7-6,3-6,6-3
Challenger - Sarasota 04/14 00:05 26 [107] Steve Johnson v Yosuke Watanuki [272] 3-6,6-4,6-1
Challenger - Sarasota 04/11 21:30 25 [107] Steve Johnson v Andrea Collarini [245] 6-3,6-4
ATP - Houston 04/08 01:55 26 [108] Steve Johnson v John Isner [27] 7-6,6-7,3-6

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.