Pominville scored in all three of Minnesota's games last week to help the Wild (8-4-3, 19 points) earn four out of a possible six points.
His best performance was in a 4-3 win over Montreal on Friday, where he posted a season-high three points (two goals, one assist), including the game-winning goal.
Pittsburgh goaltender Marc-Andre Fleury was named second star, posting a 3-0-0 record with a 1.67 goals-against average and .940 save percentage as the Penguins (11-4-0, 22 points) won all four of their games to remain in first place in the Metropolitan Division.
He capped the week on Saturday by recording a season-high 37 saves in a 4-2 victory over Columbus, becoming the first netminder in the NHL to reach 10 wins this season.
Washington left-wing Jason Chimera was named third star with two goals and four assists in three games, helping the Capitals (7-7-0, 14 points) pick up four out of a possible six points.
Chimera posted a career-high four points (one goal, three assists) in a 7-0 victory over the Philadelphia Flyers on Saturday.