Scott averaged 9.6 points and 3.6 rebounds in 80 games (six starts) for the Hawks last season. He was 62-for-200 from 3-point range after attempting just one long-range shot as a rookie.
"Mike has worked hard and continues to adapt, improve and expand his all around game," said Hawks general manager Danny Ferry. "We are very happy to have him with us going forward and we look forward to his continued growth with our group."
Scott has averaged 7.9 points and 3.3 rebounds in 120 games (seven starts) over two seasons with the Hawks. He was drafted by Atlanta with the 43rd overall pick in the 2012 NBA Draft.