A competição do revezamento 4x100 m medley masculino da natação nos Jogos Olímpicos de Verão de 2012 foi disputada nos dias 3 e 4 de agosto no Centro Aquático de Londres.
Medalhistas
*Participaram apenas das eliminatórias, mas também receberam medalhas.
Recordes Antes desta competição, os recordes mundiais e olímpicos da prova eram os seguintes:
Resultados Eliminatórias Raia CON Nadadores Tempo Notas1 2 4 Nick Thoman (53.31)Eric Shanteau (59.69)Tyler McGill (51.53)Cullen Jones (48.12)3:32.65 Q |-bgcolor=#ccffcc |2 || 1 || 1 ||align=left| ||align=left|Liam Tancock (53.98)Craig Benson (59.68)Michael Rock (51.56)Adam Brown (48.22)||3:33.44 || Q3 2 3 Ryosuke Irie (53.08)Kosuke Kitajima (59.47)Takeshi Matsuda (52.09)Takuro Fujii (49.00) 3:33.64 Q |-bgcolor=#ccffcc |4 || 1 || 4 ||align=left| ||align=left|Hayden Stoeckel (53.89)Brenton Rickard (59.95)Matt Targett (51.30)Tommaso D'Orsogna (48.59)||3:33.73 || Q5 1 3 Nick Driebergen (53.98)Lennart Stekelenburg (1:00.52)Joeri Verlinden (51.46)Sebastiaan Verschuren (47.82)3:33.78 Q, 6 2 5 Helge Meeuw (53.82)Christian vom Lehn (1:01.13)Steffen Deibler (51.18)Marco di Carli (48.15)3:34.28 Q |-bgcolor=#ccffcc |7 || 2 || 6 ||align=left| ||align=left|László Cseh (53.78 )Dániel Gyurta (59.63)Bence Pulai (52.47)Dominik Kozma (48.56)||3:34.44 || Q, |-bgcolor=#ccffcc |8 || 1 || 2 ||align=left| ||align=left|Charles Francis (53.91)Scott Dickens (1:00.60)Joe Bartoch (52.43)Brent Hayden (47.52)||3:34.46 || Q9 2 2 Gareth Kean (54.01)Glenn Snyders (59.00)Andrew McMillan (52.77)Carl O'Donnell (48.74)3:34.52 10 2 7 Camille Lacourt (53.63)Giacomo Perez-Dortona (1:00.03)Romain Sassot (52.17)Yannick Agnel (48.77)3:34.60 11 1 8 Cheng Feiyi (53.70)Li Xiayan (1:00.96)Zhou Jiawei (51.44)Lü Zhiwu (48.55)3:34.65 12 1 7 Vladimir Morozov (53.99)Vyacheslav Sinkevich (1:00.80)Nikolay Skvortsov (51.83)Andrey Grechin (48.32)3:34.94 13 2 8 Charl Crous (55.23)Cameron van der Burgh (58.96)Chad le Clos (51.83)Leith Shankland (49.21)3:35.23 14 1 5 Mirco Di Tora (54.67)Fabio Scozzoli (1:00.28)Matteo Rivolta (53.10)Luca Dotto (48.83)3:36.88 15 1 6 Thiago Pereira (54.45)Felipe França Silva (1:00.77)Kaio Márcio de Almeida (53.61)Marcelo Chierighini (48.17)3:37.00 16 2 1 Radosław Kawęcki (54.65)Dawid Szulich (1:01.39)Paweł Korzeniowski (52.40)Kacper Majchrzak (49.72)3:38.16
Final Raia CON Nadadores Tempo Notas 4 Matt Grevers (52.58)Brendan Hansen (59.19)Michael Phelps (50.73)Nathan Adrian (46.85)3:29.35 3 Ryosuke Irie (52.92)Kosuke Kitajima (58.64)Takeshi Matsuda (51.20)Takuro Fujii (48.50)3:31.26 6 Hayden Stoeckel (53.71)Christian Sprenger (59.05)Matt Targett (51.60)James Magnussen (47.22)3:31.58 4 5 Liam Tancock (53.40)Michael Jamieson (59.27)Michael Rock (51.74)Adam Brown (47.91)3:32.32 5 1 László Cseh (53.40 )Dániel Gyurta (59.01)Bence Pulai (51.82)Dominik Kozma (48.79) 3:33.02 6 7 Helge Meeuw (53.78)Christian vom Lehn (1:00.30)Steffen Deibler (50.91)Markus Deibler (48.07) 3:33.06 7 2 Nick Driebergen (53.79)Lennart Stekelenburg (1:00.24)Joeri Verlinden (51.86)Sebastiaan Verschuren (47.57) 3:33.46 8 8 Charles Francis (54.16)Scott Dickens (1:00.29)Joe Bartoch (52.32)Brent Hayden (47.42) 3:34.19
4x100 m medley masculino