Giải quần vợt Mỹ Mở rộng 1970 – Đôi nữ

Margaret Court Judy Dalton
| runner = Rosemary Casals Virginia Wade
| score = 6–3, 6–4
| before_name = Giải quần vợt Mỹ Mở rộng – Đôi nữ
| after_name = Giải quần vợt Mỹ Mở rộng – Đôi nữ
}}

Françoise Dürr và Darlene Hard là đương kim vô địch tuy nhiên thi đấu năm nay với các đồng đội khác. Françoise Dürr đánh cặp với Gail Chanfreau, và thất bại trong trận bán kết trước Margaret Court và Judy Dalton. Darlene Hard đánh cặp với Peaches Bartkowicz, và thất bại ở tứ kết trước Françoise Dürr và Gail Chanfreau.

Margaret Court và Judy Dalton giành chức vô địch khi đánh bại Rosemary Casals và Virginia Wade 6–3, 6–4 trong trận chung kết.

Hạt giống

Margaret Court / Judy Dalton (Vô địch)
Rosie Casals / Virginia Wade (Chung kết)
n/a
Gail Chanfreau / Françoise Dürr (Bán kết)
}}

Kết quả

Chung kết

Margaret Court Judy Dalton
| RD1-score1-1=7
| RD1-score1-2=6
| RD1-score1-3=7
| RD1-seed2=4
| RD1-team2= Gail Chanfreau Françoise Dürr
| RD1-score2-1=6
| RD1-score2-2=7
| RD1-score2-3=5

| RD1-seed3=
| RD1-team3= Carole Graebner Kerry Melville
| RD1-score3-1=2
| RD1-score3-2=2
| RD1-score3-3=
| RD1-seed4=2
| RD1-team4= Rosie Casals Virginia Wade
| RD1-score4-1=6
| RD1-score4-2=6
| RD1-score4-3=

| RD2-seed1=1
| RD2-team1= Margaret Court Judy Dalton
| RD2-score1-1=6
| RD2-score1-2=6
| RD2-score1-3=
| RD2-seed2=2
| RD2-team2= Rosie Casals Virginia Wade
| RD2-score2-1=3
| RD2-score2-2=4
| RD2-score2-3=
}}

Nửa trên

M Court J Dalton
| RD1-score01-1=6
| RD1-score01-2=6
| RD1-score01-3=
| RD1-seed02=
| RD1-team02= E Emanuel C Martinez
| RD1-score02-1=2
| RD1-score02-2=0
| RD1-score02-3=

| RD1-seed03=
| RD1-team03= L Tenney L Tuero
| RD1-score03-1=1
| RD1-score03-2=3
| RD1-score03-3=
| RD1-seed04=
| RD1-team04= G Hansen S Walsh
| RD1-score04-1=6
| RD1-score04-2=6
| RD1-score04-3=

| RD1-seed05=
| RD1-team05= J Newberry E Pande
| RD1-score05-1=4
| RD1-score05-2=5
| RD1-score05-3=
| RD1-seed06=
| RD1-team06= C Molesworth N Truman
| RD1-score06-1=6
| RD1-score06-2=7
| RD1-score06-3=

| RD1-seed07=
| RD1-team07= P Bostrom F Footman
| RD1-score07-1=1
| RD1-score07-2=3
| RD1-score07-3=
| RD1-seed08=
| RD1-team08= S Johnson K Kemmer
| RD1-score08-1=6
| RD1-score08-2=6
| RD1-score08-3=

| RD1-seed09=4
| RD1-team09= G Chanfreau F Dürr
| RD1-score09-1=6
| RD1-score09-2=6
| RD1-score09-3=6
| RD1-seed10=
| RD1-team10= P Faulkner S Holdsworth
| RD1-score10-1=7
| RD1-score10-2=1
| RD1-score10-3=1

| RD1-seed11=
| RD1-team11= M-A Curtis V Ziegenfuss
| RD1-score11-1=2
| RD1-score11-2=6
| RD1-score11-3=6
| RD1-seed12=
| RD1-team12= L Kaligis L Liem
| RD1-score12-1=6
| RD1-score12-2=2
| RD1-score12-3=3

| RD1-seed13=
| RD1-team13= H Gourlay P Walkden
| RD1-score13-1=6
| RD1-score13-2=3
| RD1-score13-3=6
| RD1-seed14=
| RD1-team14= L Hunt K Pigeon
| RD1-score14-1=4
| RD1-score14-2=6
| RD1-score14-3=3

| RD1-seed15=
| RD1-team15= D Knode H Parez
| RD1-score15-1=2
| RD1-score15-2=1
| RD1-score15-3=
| RD1-seed16=
| RD1-team16= P Bartkowicz D Hard
| RD1-score16-1=6
| RD1-score16-2=6
| RD1-score16-3=

| RD2-seed01=1
| RD2-team01= M Court J Dalton
| RD2-score01-1=6
| RD2-score01-2=6
| RD2-score01-3=
| RD2-seed02=
| RD2-team02= G Hansen S Walsh
| RD2-score02-1=1
| RD2-score02-2=1
| RD2-score02-3=

| RD2-seed03=
| RD2-team03= C Molesworth N Truman
| RD2-score03-1=4
| RD2-score03-2=6
| RD2-score03-3=4
| RD2-seed04=
| RD2-team04= S Johnson K Kemmer
| RD2-score04-1=6
| RD2-score04-2=2
| RD2-score04-3=6

| RD2-seed05=4
| RD2-team05= G Chanfreau F Dürr
| RD2-score05-1=6
| RD2-score05-2=3
| RD2-score05-3=7
| RD2-seed06=
| RD2-team06= M-A Curtis V Ziegenfuss
| RD2-score06-1=3
| RD2-score06-2=6
| RD2-score06-3=5

| RD2-seed07=
| RD2-team07= H Gourlay P Walkden
| RD2-score07-1=6
| RD2-score07-2=4
| RD2-score07-3=
| RD2-seed08=
| RD2-team08= P Bartkowicz D Hard
| RD2-score08-1=7
| RD2-score08-2=6
| RD2-score08-3=

| RD3-seed01=1
| RD3-team01= M Court J Dalton
| RD3-score01-1=6
| RD3-score01-2=6
| RD3-score01-3=
| RD3-seed02=
| RD3-team02= S Johnson K Kemmer
| RD3-score02-1=0
| RD3-score02-2=2
| RD3-score02-3=

| RD3-seed03=4
| RD3-team03= G Chanfreau F Dürr
| RD3-score03-1=6
| RD3-score03-2=3
| RD3-score03-3=7
| RD3-seed04=
| RD3-team04= P Bartkowicz D Hard
| RD3-score04-1=4
| RD3-score04-2=6
| RD3-score04-3=6

| RD4-seed01=1
| RD4-team01= M Court J Dalton
| RD4-score01-1=7
| RD4-score01-2=6
| RD4-score01-3=7
| RD4-seed02=4
| RD4-team02= G Chanfreau F Dürr
| RD4-score02-1=6
| RD4-score02-2=7
| RD4-score02-3=5
}}

Nửa dưới

D Carter P Teeguarden
| RD1-score01-1=6
| RD1-score01-2=6
| RD1-score01-3=
| RD1-seed02=
| RD1-team02= L duPont M Gengler
| RD1-score02-1=4
| RD1-score02-2=1
| RD1-score02-3=

| RD1-seed03=
| RD1-team03= P Austin M Cooper
| RD1-score03-1=1
| RD1-score03-2=3
| RD1-score03-3=
| RD1-seed04=
| RD1-team04= K Harris P Hogan
| RD1-score04-1=6
| RD1-score04-2=6
| RD1-score04-3=

| RD1-seed05=
| RD1-team05= A Lebedeff T O'Shaughnessy
| RD1-score05-1=6
| RD1-score05-2=6
| RD1-score05-3=6
| RD1-seed06=
| RD1-team06= S Barman B Vest
| RD1-score06-1=7
| RD1-score06-2=4
| RD1-score06-3=4

| RD1-seed09=
| RD1-team09= C Murakami J O'Hara
| RD1-score09-1=w/o
| RD1-score09-2=
| RD1-score09-3=
| RD1-seed10=
| RD1-team10= C Capozzi P Farmer
| RD1-score10-1=
| RD1-score10-2=
| RD1-score10-3=

| RD1-seed11=
| RD1-team11= M Kroschina O Morozova
| RD1-score11-1=7
| RD1-score11-2=4
| RD1-score11-3=6
| RD1-seed12=
| RD1-team12= P Reese S Stap
| RD1-score12-1=5
| RD1-score12-2=6
| RD1-score12-3=4

| RD1-seed13=
| RD1-team13= I Bentzer C Sandberg
| RD1-score13-1=6
| RD1-score13-2=6
| RD1-score13-3=
| RD1-seed14=
| RD1-team14= B-A Hansen M Johnson
| RD1-score14-1=2
| RD1-score14-2=2
| RD1-score14-3=

| RD1-seed15=
| RD1-team15= P Cody C Spinoza
| RD1-score15-1=2
| RD1-score15-2=2
| RD1-score15-3=
| RD1-seed16=2
| RD1-team16= R Casals V Wade
| RD1-score16-1=6
| RD1-score16-2=6
| RD1-score16-3=

| RD2-seed01=
| RD2-team01= D Carter P Teeguarden
| RD2-score01-1=6
| RD2-score01-2=4
| RD2-score01-3=4
| RD2-seed02=
| RD2-team02= K Harris P Hogan
| RD2-score02-1=2
| RD2-score02-2=6
| RD2-score02-3=6

| RD2-seed03=
| RD2-team03= A Lebedeff T O'Shaughnessy
| RD2-score03-1=1
| RD2-score03-2=2
| RD2-score03-3=
| RD2-seed04=
| RD2-team04= C Graebner K Melville
| RD2-score04-1=6
| RD2-score04-2=6
| RD2-score04-3=

| RD2-seed05=
| RD2-team05= C Murakami J O'Hara
| RD2-score05-1=1
| RD2-score05-2=5
| RD2-score05-3=
| RD2-seed06=
| RD2-team06= M Kroschina O Morozova
| RD2-score06-1=6
| RD2-score06-2=7
| RD2-score06-3=

| RD2-seed07=
| RD2-team07= I Bentzer C Sandberg
| RD2-score07-1=0
| RD2-score07-2=2
| RD2-score07-3=
| RD2-seed08=2
| RD2-team08= R Casals V Wade
| RD2-score08-1=6
| RD2-score08-2=6
| RD2-score08-3=

| RD3-seed01=
| RD3-team01= K Harris P Hogan
| RD3-score01-1=3
| RD3-score01-2=7
| RD3-score01-3=6
| RD3-seed02=
| RD3-team02= C Graebner K Melville
| RD3-score02-1=6
| RD3-score02-2=5
| RD3-score02-3=7

| RD3-seed03=
| RD3-team03= M Kroschina O Morozova
| RD3-score03-1=2
| RD3-score03-2=1
| RD3-score03-3=
| RD3-seed04=2
| RD3-team04= R Casals V Wade
| RD3-score04-1=6
| RD3-score04-2=6
| RD3-score04-3=

| RD4-seed01=
| RD4-team01= C Graebner K Melville
| RD4-score01-1=2
| RD4-score01-2=2
| RD4-score01-3=
| RD4-seed02=2
| RD4-team02= R Casals V Wade
| RD4-score02-1=6
| RD4-score02-2=6
| RD4-score02-3=
}}

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