D'Antoni, known for high-powered offensive system that ranked second this season, helped guide the Rockets to 55 wins, grabbing the third seed in the Western Conference.
Mike D'Antoni was then voted Coach of the Year, the second time he has won the award.
As a reward for his success, D'Antoni was rewarded with the 2017 NBA Coach of the Year Award.
Gordon beat out teammate Lou Williams and Golden State's Andre Iguodala. "As the oldest rookie to win this award in decades, I know it is the culmination of many special people who believed in me, starting with my mother, and continuing with my owners, my teammates, Coach Kidd and the entire Bucks' staff".
Gordon averaged 16.4 points off the bench and made 246 three-pointers, placing him fourth in the league this season.
Draymond Green, sporting a teal blazer paired with shorts, became the first Warrior to win Defensive Player of the Year.
The Milwaukee Bucks were also double winners at the event with Giannis Antetokounmpo named Most Improved Player and Malcolm Brogdon the Rookie of the Year. For months, there had been debates among sports analysts, journalists, and fans as to which player was most deserving.
He was joined on the first team by Utah center Rudy Gobert and Spurs All-Star Kawhi Leonard - who join Green as the finalists for Defensive Player of the Year be announced Monday night during the NBA Awards show.
Malcolm Brogdon of the Milwaukee Bucks is the NBA's Rookie of the Year.
Assist of the Year went to Green and Steph Curry, while Bob Meyers walked away with the Executive of the Year.
The Clippers' Chris Paul and Houston's Patrick Beverley were the two guards on the first team.