Arne Slot thanked "the wider football community" for its support following the incident at Liverpool's title parade as he was named manager of the year and Premier League manager of the year at the League Managers Association (LMA) awards.
About 50 people - including four children - were injured on Monday when a car rammed into crowds in central Liverpool.
Slot was honoured with the Sir Alex Ferguson Trophy at the annual LMA ceremony in London - which he did not attend.
After replacing Jurgen Klopp last summer, the 46-year-old only signed one player - forward Federico Chiesa - but still delivered Liverpool's second Premier League title, winning the league by 10 points from Arsenal.