2021 St. Petersburg Open – Doubles

{{Tennis events|2021|St. Petersburg Open|s

| champ = {{flagicon|GBR}} Jamie Murray
{{flagicon|BRA}} Bruno Soares

| runner = {{flagicon|KAZ}} Andrey Golubev
{{flagicon|MON}} Hugo Nys

| score = 6–3, 6–4

| type = singles doubles

| before_name = St. Petersburg Open – Doubles

| after_name = St. Petersburg Open – Doubles

}}

Jürgen Melzer and Édouard Roger-Vasselin were the defending champions,{{cite web|url=https://www.atptour.com/en/news/st-petersburg-2020-doubles-final|title=Melzer/Roger-Vasselin Claim First Team Title In St. Petersburg|website=www.atptour.com|date=19 October 2020}} but Roger-Vasselin chose not to participate and Melzer chose to compete in Vienna instead.

Jamie Murray and Bruno Soares won the title, defeating Andrey Golubev and Hugo Nys in the final, 6–3, 6–4.

Seeds

{{columns-list|colwidth=30em|

{{flagicon|GBR}} Jamie Murray / {{flagicon|BRA}} Bruno Soares (champions)
{{flagicon|RSA}} Raven Klaasen / {{flagicon|JPN}} Ben McLachlan (first round)
{{flagicon|ESA}} Marcelo Arévalo / {{flagicon|NED}} Matwé Middelkoop (first round)
{{flagicon|KAZ}} Andrey Golubev / {{flagicon|MON}} Hugo Nys (final)

}}

Draw

=Draw=

{{16TeamBracket-Compact-Tennis3-Byes

| RD1=First round

| RD2=Quarterfinals

| RD3=Semifinals

| RD4=Final

| RD1-seed01=1

| RD1-team01={{flagicon|GBR}} J Murray
{{flagicon|BRA}} B Soares

| RD1-score01-1=6

| RD1-score01-2=6

| RD1-score01-3=

| RD1-seed02=WC

| RD1-team02={{flagicon|ISR}} J Erlich
{{flagicon|BLR}} A Vasilevski

| RD1-score02-1=1

| RD1-score02-2=4

| RD1-score02-3=

| RD1-seed03=PR

| RD1-team03={{flagicon|GBR}} D Inglot
{{flagicon|GBR}} K Skupski

| RD1-score03-1=4

| RD1-score03-2=5

| RD1-score03-3=

| RD1-seed04=

| RD1-team04={{flagicon|AUS}} L Saville
{{flagicon|AUS}} J-P Smith

| RD1-score04-1=6

| RD1-score04-2=7

| RD1-score04-3=

| RD1-seed05=3

| RD1-team05={{flagicon|ESA}} M Arévalo
{{flagicon|NED}} M Middelkoop

| RD1-score05-1=6

| RD1-score05-2=5

| RD1-score05-3=[7]

| RD1-seed06=

| RD1-team06={{flagicon|NZL}} M Daniell
{{flagicon|BRA}} M Demoliner

| RD1-score06-1=3

| RD1-score06-2=7

| RD1-score06-3=[10]

| RD1-seed07=

| RD1-team07={{flagicon|URU}} A Behar
{{flagicon|ECU}} G Escobar

| RD1-score07-1=4

| RD1-score07-2=5

| RD1-score07-3=

| RD1-seed08=

| RD1-team08={{flagicon|USA}} T Fritz
{{flagicon|USA}} T Paul

| RD1-score08-1=6

| RD1-score08-2=7

| RD1-score08-3=

| RD1-seed09=

| RD1-team09={{flagicon|BIH}} T Brkić
{{flagicon|SRB}} N Ćaćić

| RD1-score09-1=4

| RD1-score09-2=6

| RD1-score09-3=[7]

| RD1-seed10=

| RD1-team10={{flagicon|MEX}} S González
{{flagicon|ARG}} A Molteni

| RD1-score10-1=6

| RD1-score10-2=2

| RD1-score10-3=[10]

| RD1-seed11=

| RD1-team11={{flagicon|KAZ}} A Bublik
{{flagicon|BLR}} I Ivashka

| RD1-score11-1=3

| RD1-score11-2=1

| RD1-score11-3=

| RD1-seed12=4

| RD1-team12={{flagicon|KAZ}} A Golubev
{{flagicon|MON}} H Nys

| RD1-score12-1=6

| RD1-score12-2=6

| RD1-score12-3=

| RD1-seed13=

| RD1-team13={{flagicon|RUS}} K Khachanov
{{flagicon|RUS}} A Rublev

| RD1-score13-1=6

| RD1-score13-2=6

| RD1-score13-3=

| RD1-seed14=WC

| RD1-team14={{flagicon|RUS}} D Golubev
{{flagicon|RUS}} E Tiurnev

| RD1-score14-1=1

| RD1-score14-2=1

| RD1-score14-3=

| RD1-seed15=

| RD1-team15={{flagicon|IND}} R Bopanna
{{flagicon|CAN}} D Shapovalov

| RD1-score15-1=7

| RD1-score15-2=6

| RD1-score15-3=

| RD1-seed16=2

| RD1-team16={{flagicon|RSA}} R Klaasen
{{flagicon|JPN}} B McLachlan

| RD1-score16-1=5

| RD1-score16-2=4

| RD1-score16-3=

| RD2-seed01=1

| RD2-team01={{flagicon|GBR}} J Murray
{{flagicon|BRA}} B Soares

| RD2-score01-1=7⁷

| RD2-score01-2=3

| RD2-score01-3=[10]

| RD2-seed02=

| RD2-team02={{flagicon|AUS}} L Saville
{{flagicon|AUS}} J-P Smith

| RD2-score02-1=6⁰

| RD2-score02-2=6

| RD2-score02-3=[6]

| RD2-seed03=

| RD2-team03={{flagicon|NZL}} M Daniell
{{flagicon|BRA}} M Demoliner

| RD2-score03-1=6

| RD2-score03-2=3

| RD2-score03-3=[10]

| RD2-seed04=

| RD2-team04={{flagicon|USA}} T Fritz
{{flagicon|USA}} T Paul

| RD2-score04-1=0

| RD2-score04-2=6

| RD2-score04-3=[7]

| RD2-seed05=

| RD2-team05={{flagicon|MEX}} S González
{{flagicon|ARG}} A Molteni

| RD2-score05-1=6⁴

| RD2-score05-2=3

| RD2-score05-3=

| RD2-seed06=4

| RD2-team06={{flagicon|KAZ}} A Golubev
{{flagicon|MON}} H Nys

| RD2-score06-1=7⁷

| RD2-score06-2=6

| RD2-score06-3=

| RD2-seed07=

| RD2-team07={{flagicon|RUS}} K Khachanov
{{flagicon|RUS}} A Rublev

| RD2-score07-1=4

| RD2-score07-2=7

| RD2-score07-3=[7]

| RD2-seed08=

| RD2-team08={{flagicon|IND}} R Bopanna
{{flagicon|CAN}} D Shapovalov

| RD2-score08-1=6

| RD2-score08-2=5

| RD2-score08-3=[10]

| RD3-seed01=1

| RD3-team01={{flagicon|GBR}} J Murray
{{flagicon|BRA}} B Soares

| RD3-score01-1=7

| RD3-score01-2=6

| RD3-score01-3=

| RD3-seed02=

| RD3-team02={{flagicon|NZL}} M Daniell
{{flagicon|BRA}} M Demoliner

| RD3-score02-1=5

| RD3-score02-2=3

| RD3-score02-3=

| RD3-seed03=4

| RD3-team03={{flagicon|KAZ}} A Golubev
{{flagicon|MON}} H Nys

| RD3-score03-1=6

| RD3-score03-2=2

| RD3-score03-3=[10]

| RD3-seed04=

| RD3-team04={{flagicon|IND}} R Bopanna
{{flagicon|CAN}} D Shapovalov

| RD3-score04-1=4

| RD3-score04-2=6

| RD3-score04-3=[4]

| RD4-seed01=1

| RD4-team01={{flagicon|GBR}} J Murray
{{flagicon|BRA}} B Soares

| RD4-score01-1=6

| RD4-score01-2=6

| RD4-score01-3=

| RD4-seed02=4

| RD4-team02={{flagicon|KAZ}} A Golubev
{{flagicon|MON}} H Nys

| RD4-score02-1=3

| RD4-score02-2=4

| RD4-score02-3=

}}

References

[http://www.protennislive.com/posting/2021/568/mdd.pdf Main Draw]

St. Petersburg Open - Doubles

2021 Doubles