Astana Open 2021 - Đôi nam

Santiago González Andrés Molteni
| runner = Jonathan Erlich Andrei Vasilevski
| score = 6–1, 6–2
| edition =
| before_name = Astana Open
| main_name = Astana Open
}}

Sander Gillé và Joran Vliegen là đương kim vô địch, nhưng chọn không bảo vệ danh hiệu.

Santiago González và Andrés Molteni là nhà vô địch, đánh bại Jonathan Erlich và Andrei Vasilevski trong trận chung kết, 6–1, 6–2.

Hạt giống
Santiago González / Andrés Molteni (Vô địch)
Andrey Golubev / Aleksandr Nedovyesov (Tứ kết)
Marcelo Demoliner / Rafael Matos (Vòng 1)
André Göransson / Andrea Vavassori (Tứ kết)
}}

Kết quả

Kết quả
S González A Molteni
| RD1-score01-1=6
| RD1-score01-2=65
| RD1-score01-3=[10]
| RD1-seed02=WC
| RD1-team02= D Popko T Skatov
| RD1-score02-1=4
| RD1-score02-2=77
| RD1-score02-3=[6]

| RD1-seed03=
| RD1-team03= D Pel A-u-H Qureshi
| RD1-score03-1=64
| RD1-score03-2=3
| RD1-score03-3=
| RD1-seed04=
| RD1-team04= L Glasspool H Heliövaara
| RD1-score04-1=77
| RD1-score04-2=6
| RD1-score04-3=

| RD1-seed05=4
| RD1-team05= A Göransson A Vavassori
| RD1-score05-1=6
| RD1-score05-2=4
| RD1-score05-3=[11]
| RD1-seed06=
| RD1-team06= A Begemann N Lammons
| RD1-score06-1=4
| RD1-score06-2=6
| RD1-score06-3=[9]

| RD1-seed07=
| RD1-team07= R Berankis A Sitak
| RD1-score07-1=7
| RD1-score07-2=6
| RD1-score07-3=
| RD1-seed08=
| RD1-team08= E Ruusuvuori A Seppi
| RD1-score08-1=5
| RD1-score08-2=3
| RD1-score08-3=

| RD1-seed09=
| RD1-team09= J Munar M Polmans
| RD1-score09-1=77
| RD1-score09-2=4
| RD1-score09-3=[10]
| RD1-seed10=WC
| RD1-team10= A Bublik D Golubev
| RD1-score10-1=65
| RD1-score10-2=6
| RD1-score10-3=[8]

| RD1-seed11=
| RD1-team11= J Erlich A Vasilevski
| RD1-score11-1=6
| RD1-score11-2=1
| RD1-score11-3=[10]
| RD1-seed12=3
| RD1-team12= M Demoliner R Matos
| RD1-score12-1=1
| RD1-score12-2=6
| RD1-score12-3=[7]

| RD1-seed13=
| RD1-team13= R Arneodo B Bonzi
| RD1-score13-1=6
| RD1-score13-2=7
| RD1-score13-3=
| RD1-seed14=
| RD1-team14= R Jebavý J Veselý
| RD1-score14-1=3
| RD1-score14-2=5
| RD1-score14-3=

| RD1-seed15=
| RD1-team15= J Duckworth M Ebden
| RD1-score15-1=67
| RD1-score15-2=2
| RD1-score15-3=
| RD1-seed16=2
| RD1-team16= A Golubev A Nedovyesov
| RD1-score16-1=79
| RD1-score16-2=6
| RD1-score16-3=

| RD2-seed01=1
| RD2-team01= S González A Molteni
| RD2-score01-1=5
| RD2-score01-2=6
| RD2-score01-3=[10]
| RD2-seed02=
| RD2-team02= L Glasspool H Heliövaara
| RD2-score02-1=7
| RD2-score02-2=4
| RD2-score02-3=[8]

| RD2-seed03=4
| RD2-team03= A Göransson A Vavassori
| RD2-score03-1=5
| RD2-score03-2=6
| RD2-score03-3=[7]
| RD2-seed04=
| RD2-team04= R Berankis A Sitak
| RD2-score04-1=7
| RD2-score04-2=3
| RD2-score04-3=[10]

| RD2-seed05=
| RD2-team05= J Munar M Polmans
| RD2-score05-1=1
| RD2-score05-2=2
| RD2-score05-3=
| RD2-seed06=
| RD2-team06= J Erlich A Vasilevski
| RD2-score06-1=6
| RD2-score06-2=6
| RD2-score06-3=

| RD2-seed07=
| RD2-team07= R Arneodo B Bonzi
| RD2-score07-1=6
| RD2-score07-2=4
| RD2-score07-3=[10]
| RD2-seed08=2
| RD2-team08= A Golubev A Nedovyesov
| RD2-score08-1=4
| RD2-score08-2=6
| RD2-score08-3=[7]

| RD3-seed01=1
| RD3-team01= S González A Molteni
| RD3-score01-1=6
| RD3-score01-2=6
| RD3-score01-3=
| RD3-seed02=
| RD3-team02= R Berankis A Sitak
| RD3-score02-1=4
| RD3-score02-2=0
| RD3-score02-3=

| RD3-seed03=
| RD3-team03= J Erlich A Vasilevski
| RD3-score03-1=79
| RD3-score03-2=77
| RD3-score03-3=
| RD3-seed04=
| RD3-team04= R Arneodo B Bonzi
| RD3-score04-1=67
| RD3-score04-2=65
| RD3-score04-3=

| RD4-seed01=1
| RD4-team01= S González A Molteni
| RD4-score01-1=6
| RD4-score01-2=6
| RD4-score01-3=
| RD4-seed02=
| RD4-team02= J Erlich A Vasilevski
| RD4-score02-1=1
| RD4-score02-2=2
| RD4-score02-3=
}}

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