Boldy got top honours after putting up three goals and three assists over two games, and helping the Wild extend their win streak to five games.
It took the 24-year-old forward just 12 minutes and 58 seconds to score a hat trick in Minnesota’s 6-5 overtime victory against the Nashville Predators on Wednesday.
Horvat was named second star following a week where he contributed three goals — including two game winners — and two assists for the Islanders.
Vejmelka recorded two wins and posted a 1.51 goals-against average and a .944 save percentage as the Mammoth moved into the first wild-card spot in the Western Conference.
All three players are set to play for their nations in the Milan Cortina Olympics this month, with Boldy representing the United States, Horvat playing for Canada and Vejmelka in the net for Czechia.