The 2019–20 Armenia Basketball League A is the second season of the basketball first division of Armenia.
Aragats are the defending champions.
The regular season consists in a double-legged round-robin tournament where the six teams qualify for the playoffs.
Gyumri and Erebuni replaced Artsakh and Artik.
The playoffs are played in a best-of-seven format, with the series starting 1–1 or 2–0 depending on the head-to-head games in the regular season.