The Belarus women's national tennis team represented Belarus in Billie Jean King Cup tennis competition and are governed by the Belarus Tennis Association. They compete in the World Group. After the 2022 Russia invasion of Ukraine, the International Tennis Federation suspended Russia and Belarus from Billie Jean King Cup competitions.
The Great Britain Billie Jean King Cup team represents the United Kingdom in Fed Cup tennis competition and are governed by the Lawn Tennis Association. In 2020, they lost out on a chance to secure a place at the inaugural Billie Jean King Cup finals, losing to Slovakia 3-1. However, in 2021 they won their play-off against Mexico and will play for another chance to enter the finals in 2022.
The Russia women's national tennis team represented Russia in Billie Jean King Cup tennis competition and are governed by the Russian Tennis Federation. They compete in the World Group. Following the 2020 ban of Russia by the World Anti-Doping Agency (WADA) and the Court of Arbitration for Sport (CAS), it competed and won the 2020–21 Billie Jean King Cup under the RTF flag and name. After the 2022 Russia invasion of Ukraine, the International Tennis Federation suspended Russia from Billie Jean King Cup competitions.
The France women's national tennis team represents France in international women's tennis and is directed by the Fédération Française de Tennis. The team played in the first ever tournament in 1963, and is one of four teams that has taken part in every single edition since.
The Romania Fed Cup team represents Romania in Fed Cup tennis competition. It is governed by the Federația Română de Tenis and currently competes in the World Group I, the highest level of the competition.
The Italy women's national tennis team represents Italy in international women's tennis and is directed by the Federazione Italiana Tennis. The team played in the first ever tournament in 1963, and is one of four teams that has taken part in every single edition since.
The Australia Billie Jean King Cup team represents Australia in international women's tennis and is directed by Tennis Australia. The team played in the first ever tournament in 1963, and is one of four teams that has taken part in every single edition since.
The Belgian women's national tennis team, managed by the Belgian Tennis Federation, has been competing in the International Tennis Federation sanctioned Fed Cup since the very beginning: 1963. It has won the competition once, in 2001. Both Kim Clijsters and Justine Henin won their singles matches to seal the first victory for Belgium against Russia in Madrid.
The Mexico Fed Cup team represents Mexico in Fed Cup tennis competition and are governed by the Federación Mexicana de Tenis. They currently compete in the Americas Zone Group II.
The Spain women's national tennis team represents Spain in Fed Cup tennis competition and are governed by the Real Federación Española de Tenis. They currently compete in World Group II. The team Captain, as of 2018, is former professional player Anabel Medina Garrigues.
The Canada women's national tennis represents Canada in Billie Jean King Cup tennis competition and is governed by Tennis Canada. They currently compete in World Group II.
The Czech Republic women's national tennis team is the representative national team of the Czech Republic in Billie Jean King Cup competition. The Czech Republic team in its current incarnation began competing in 1993. It is seen as the primary successor to the Czechoslovak team, and not Slovakia, even though the Czechoslovak team included both Czech and Slovak players.
The Switzerland women's national tennis team represents Switzerland in Fed Cup tennis competition and are governed by Swiss Tennis. They currently compete in World Group II.
The Hungary women's national tennis team represents Hungary in Fed Cup tennis competition and are governed by the Magyar Tenisz Szövetség. They currently compete in the Europe/Africa Zone of Group I.
The Germany women's national tennis team represents Germany in Billie Jean King Cup tennis competition and are governed by Deutscher Tennis Bund.