Améganvi was born on 3 September 1961 in the town of
Kpalimé, Togo, the sixth of eight children. She received her primary education at the Evangelical School Hanoukopé. She enrolled at the collège Notre Dame des Apôtre and the Tokoin Lycée in
Lomé, Togo's capital. Afterwards, she studied at
Lycée Jean-Baptiste Say in
Paris, France, and received her degree in 1983. Améganvi earned a law degree at
Paris I University in 1989 and a
master of law at the
University of Benin the following year. Améganvi was a trainee lawyer under Ahlin K. Komlan in Lomé from 1994 to 1996. In February 1997, she was called to the bar in Togo. As a lawyer, she represented students, political prisoners, journalists, trade unionists and other human rights activists. In the 1990s, she joined the Togolese League of Human Rights and the Collective of Associations of Women. Ameganvi later served on the legal committee of the Evangelical Presbyterian Church of Togo. ==Political career==