1975 Commercial Union Assurance Masters – Doubles
{{main|1975 Commercial Union Assurance Masters}}
{{Tennis events|1975|Commercial Union Assurance Masters|s
| champ = {{flagicon|ESP|1945}} Juan Gisbert Sr.
{{flagicon|ESP|1945}} Manuel Orantes
| runner = {{flagicon|FRG}} Jürgen Fassbender
{{flagicon|FRG}} Hans-Jürgen Pohmann
| type = singles doubles
| before_year = 1970
| before_name = Pepsi-Cola Masters
}}
Juan Gisbert Sr. and Manuel Orantes won the doubles tennis title at the 1975 Masters Grand Prix, which was played in a round-robin format.{{cite web|url=https://www.nittoatpfinals.com/en/heritage/doubles-results|title=Doubles Results|website=Nitto ATP Finals}}{{cite web|url=https://www.atptour.com/en/scores/archive/masters/605/1975/draws?matchType=doubles|title=Nitto ATP Finals - Draws|website=ATP Tour}}
Arthur Ashe and Stan Smith were the reigning champions from when the tournament was last held in 1970, but neither qualified this year.
Draw
{{4TeamRR-TennisWide
|title-1=
|title-2=RR W–L
|title-3=Set W–L
|title-4=Game W–L
|title-5=Standings
|team-1-abbrev={{flagicon|ESP|1945}} Gisbert
{{flagicon|ESP|1945}} Orantes
|team-1={{flagicon|ESP|1945}} Juan Gisbert Sr.
{{flagicon|ESP|1945}} Manuel Orantes
|match-w/l-1=2–1
|set-w/l-1=4–2 (67%)
|game-w/l-1=28–22 (56%)
|standings-1=1
|team-2-abbrev={{flagicon|FRG}} Fassbender
{{flagicon|FRG}} Pohmann
|team-2={{flagicon|FRG}} Jürgen Fassbender
{{flagicon|FRG}} Hans-Jürgen Pohmann
|match-w/l-2=2–1
|set-w/l-2=4–2 (67%)
|game-w/l-2=32–33 (49%)
|standings-2=2
|team-3-abbrev={{flagicon|USA}} Stewart
{{flagicon|USA}} McNair
|team-3={{flagicon|USA}} Sherwood Stewart
{{flagicon|USA}} Fred McNair
|match-w/l-3=2–1
|set-w/l-3=4–3 (57%)
|game-w/l-3=39–28 (58%)
|standings-3=3
|team-4-abbrev={{flagicon|USA}} Gottfried
{{flagicon|MEX}} Ramírez
|team-4={{flagicon|USA}} Brian Gottfried
{{flagicon|MEX}} Raúl Ramírez
|match-w/l-4=0–3
|set-w/l-4=1–6 (14%)
|game-w/l-4=23–39 (37%)
|standings-4=4
|color-row-1=
|1v2=7–5, 6–1
|1v3=0–6, 3–6
|1v4=6–3, 6–1
|color-row-2=
|2v1=5–7, 1–6
|2v3=7–6, 7–6
|2v4=6–4, 6–4
|color-row-3=
|3v1=6–0, 6–3
|3v2=6–7, 6–7
|3v4=3–6, 6–3, 6–2
|color-row-4=
|4v1=3–6, 1–6
|4v2=4–6, 4–6
|4v3=6–3, 3–6, 2–6
}}
In three-teams-ties standings are determined by percentage of sets won, then percentage of games won.