Robert Wielaert (Dutch pronunciation: [rɔp ˈʋilaːrt]; born 29 December 1978) is a Dutch former professional footballer who played as a centre-back.

Wielaert was born in Emmeloord, Flevoland and made his debut in professional football with PSV Eindhoven in the 1997–98 season.

In June 2013, Wielaert was signed by Australian club Melbourne Heart in the A-League.

The Dutchman had never played outside of the Netherlands and was optimistic about playing in Australia: Wielaert scored his first goal for his new club and was the opening goal in the Melbourne Derby against Melbourne Victory on 25 October 2014 in front of 43,729 fans.

This biographical article related to association football in the Netherlands, about a defender, is a stub.