The play-offs of the 2020–21 Billie Jean King Cup Europe/Africa Zone Group I were the final stages of the Group I zonal competition involving teams from the Europe/Africa. Using the positions determined in their pools, the thirteen teams faced off to determine their placing in the 2020 Billie Jean King Cup Europe/Africa Zone Group I. The top four teams advanced to the 2020 Billie Jean King Cup play-offs, while the bottom two teams were relegated to Europe/Africa Zone Group II for 2022.

Placing	Pool A (Tallinn)	Pool B (Tallinn)	Pool A (Esch-sur-Alzette)	Pool B (Esch-sur-Alzette)
1	Ukraine	Italy	Serbia	Poland
2	Croatia	Estonia	Sweden	Slovenia
3	—	Austria	—
4	Bulgaria	Greece	Luxembourg	Turkey

The first-placed and second-placed teams of each pool played against one another in a head-to-head round. The winners of each round advanced to the 2020 Billie Jean King Cup play-offs.

Ukraine 2	Tallink Tennis Center, Tallinn, Estonia[1] 8 February 2020 Hard (indoors)		Estonia 1
1 2 3 1 Dayana Yastremska Elena Malõgina 6 3 6 1     2 Elina Svitolina Anett Kontaveit 3 6 77 65 2 6   3 Marta Kostyuk / Dayana Yastremska Anett Kontaveit / Elena Malõgina 6 2 6 0

Croatia 0	Tallink Tennis Center, Tallinn, Estonia[2] 8 February 2020 Hard (indoors)		Italy 2
1 2 3 1 Lea Bošković Elisabetta Cocciaretto 3 6 3 6     2 Jana Fett Camila Giorgi 64 77 4 6     3 Jana Fett / Darija Jurak Jasmine Paolini / Martina Trevisan       not played

Serbia 2	Centre National de Tennis, Esch-sur-Alzette, Luxembourg[3] 8 February 2020 Hard (indoors)		Slovenia 1
1 2 3 1 Olga Danilović Kaja Juvan 2 6 2 6     2 Nina Stojanović Tamara Zidanšek 6 4 7 5     3 Aleksandra Krunić / Nina Stojanović Kaja Juvan / Tamara Zidanšek 6 4 6 4

Poland 2	Centre National de Tennis, Esch-sur-Alzette, Luxembourg[4] 8 February 2020 Hard (indoors)		Sweden 0
1 2 3 1 Iga Świątek Mirjam Björklund 7 5 4 6 6 3   2 Magda Linette Johanna Larsson 7 5 6 4     3 Maja Chwalińska / Alicja Rosolska Johanna Larsson / Cornelia Lister       not played

The last-placed teams of each pool played against one another in a head-to-head round. The losers of each tie were relegated to Europe/Africa Zone Group II in 2022.

Bulgaria 2	Tallink Tennis Center, Tallinn, Estonia[5] 8 February 2020 Hard (indoors)		Greece 0
1 2 3 1 Isabella Shinikova Valentini Grammatikopoulou 6 3 6 1     2 Viktoriya Tomova Despina Papamichail 6 2 6 4     3 Isabella Shinikova / Viktoriya Tomova Valentini Grammatikopoulou / Despina Papamichail       not played

Luxembourg 0	Centre National de Tennis, Esch-sur-Alzette, Luxembourg[6] 8 February 2020 Hard (indoors)		Turkey 2
1 2 3 1 Tiffany Cornelius Berfu Cengiz 2 6 2 6     2 Eléonora Molinaro Pemra Özgen 3 6 4 6     3 Tiffany Cornelius / Eléonora Molinaro Ayla Aksu / İpek Öz       not played

Placing	Teams
Promoted/First	Ukraine	Italy	Serbia	Poland
Fifth	Estonia	Croatia	Slovenia	Sweden
Ninth	Austria
Tenth	Bulgaria		Turkey
Twelfth/Relegated	Greece		Luxembourg

•  Ukraine,  Italy,  Serbia and  Poland were promoted to the 2020 Billie Jean King Cup play-offs.
•  Greece and  Luxembourg were relegated to Europe/Africa Zone Group II in 2021.

• Fed Cup website