2020 Billie Jean King Cup Europe/Africa Zone Group I – Pool A (Tallinn)

The 2020 Billie Jean King Cup Europe/Africa Zone Group I – Pool A (Tallinn) was one of two pools within Group I of the Europe/Africa Zone of the 2020 Billie Jean King Cup (formerly known as the Fed Cup). It was held in Tallinn, Estonia, and featured round-robin play between four national teams: Croatia, Estonia, Greece, and Slovenia.

The teams competed against each other to determine placement within Group I. The winner of Pool A competed in a play-off against the winner of Pool B (also held within the Europe/Africa Zone Group I) for a chance to advance to the Billie Jean King Cup Play-offs. The teams finishing last in each pool competed against each other to determine which nation would be relegated to Group II for the following year's competition. Due to the COVID-19 pandemic, the 2020 edition of the Billie Jean King Cup was postponed and eventually cancelled. As a result, the outcomes of the Group I pools in Tallinn did not result in any teams advancing or being relegated.