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.