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 The Third. (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.