ATP Indian Wells 03/05 01:00 14 [242] Steve Johnson v Emilio Nava [134] 7-6,6-7,4-6
ATP Los Cabos 02/18 01:30 14 [102] Aleksandar Kovacevic v Steve Johnson [236] 7-5,6-3
ATP Dallas 02/06 20:10 25 [246] Steve Johnson v Christopher Eubanks [33] 1-6,4-6
ATP Dallas 02/05 18:00 19 [144] Terence Atmane v Steve Johnson [246] 3-6,7-6,4-6
ATP Dallas 02/04 17:00 14 Timo Stodder v Steve Johnson 4-6,2-6
Challenger Charlottesville 11/01 00:15 25 [101] Michael Mmoh v Steve Johnson [224] 7-6,7-5
Challenger Fairfield 10/14 21:25 28 Nishesh Basavareddy v Steve Johnson 3-6,7-5,6-3
Challenger Fairfield 10/13 20:05 27 [227] Steve Johnson v Christian Harrison [153] 6-1,6-2
Challenger Fairfield 10/12 21:10 26 [272] Tristan Schoolkate v Steve Johnson [227] 6-7,3-6
Challenger Fairfield 10/10 23:40 25 [295] Bernard Tomic v Steve Johnson [227] 3-6,6-1,1-6
Challenger Tiburon 10/04 23:30 26 [227] Steve Johnson v Zachary Svajda [170] 6-3,3-6,4-6
Challenger Tiburon 10/02 23:30 25 Stefan Dostanic v Steve Johnson 6-7,6-3,2-6
US Open 08/28 20:05 23 [205] Steve Johnson v Taylor Fritz [9] 2-6,1-6,2-6
Challenger Stanford 08/14 22:55 25 [179] Steve Johnson v Yosuke Watanuki [90] 5-7,7-5,4-6
Challenger Cary 08/08 14:00 25 Steve Johnson v Zachary Svajda Cancelled
Challenger Lexington 08/06 17:00 29 [138] Arthur Cazaux v Steve Johnson [193] 6-7,4-6
Challenger Lexington 08/05 18:00 28 [218] Tennys Sandgren v Steve Johnson [193] 6-7,3-6
Challenger Lexington 08/04 15:00 27 [422] Ulises Blanch v Steve Johnson [193] 3-6,4-6
Challenger Lexington 08/02 15:50 26 Eliot Spizzirri v Steve Johnson 3-6,5-7
Challenger Lexington 07/31 23:50 25 [314] Billy Harris v Steve Johnson [193] 6-7,4-6
ATP Newport 07/19 18:55 26 [197] Steve Johnson v Ugo Humbert [40] 4-6,4-6
ATP Newport 07/18 22:05 25 [322] Yunseong Chung v Steve Johnson [197] 2-6,3-6
Challenger Chicago 07/12 19:30 25 Nishesh Basavareddy v Steve Johnson 6-3,2-6,6-4
Challenger Bloomfield Hills 07/09 17:00 29 [262] Mikhail Kukushkin v Steve Johnson [219] 4-6,7-6,6-7
Challenger Bloomfield Hills 07/08 15:00 28 [326] Tristan Schoolkate v Steve Johnson [219] 4-6,2-6
Challenger Bloomfield Hills 07/07 15:00 27 [219] Steve Johnson v Yasutaka Uchiyama [267] 6-4,6-7,7-6
Challenger Bloomfield Hills 07/06 17:00 26 [219] Steve Johnson v James McCabe [277] 6-4,6-2
Challenger Bloomfield Hills 07/05 16:55 25 [219] Steve Johnson v Aidan Mchugh [375] 7-6,6-4
Wimbledon 06/26 15:30 14 [117] Dominic Stricker v Steve Johnson [217] 7-5,6-4
Challenger Nottingham 06/13 15:20 25 [203] Steve Johnson v Arthur Fery [409] 6-4,3-6,3-6

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.