The 2015–16 Dallas Mavericks season was the 36th season of the franchise in the National Basketball Association (NBA).
The Mavericks finished second in the Southwest Division and sixth in the Western Conference with a 42–40 record.
The Mavs' season ended with a 1–4 first round playoff series loss to the Oklahoma City Thunder.
The Mavericks would not qualify for the playoffs again until 2020.
This season also marked the final career playoff appearance of Dirk Nowitzki until his retirement in 2019.