Villeneuve returned to NASCAR once again in 2019 after he signed a contract with Go Fas Racing to compete full-time in the NASCAR Whelen Euro Series for the 2019 season. He scored a double podium finish in his second Euro Series race week at Franciacorta. Later at Venray, Villeneuve scored his first pole position in the series and would led the majority of the race before finishing in third for his third podium of the season. His participation in the season finale race at Zolder would mark the first time he raced on the track where his father Gilles was killed in 1982. Despite being involved in a first corner incident on the first race in Zolder, he scored the fastest lap to secure pole position for the second race on Sunday, his second in his Euro Series career. Villeneuve would finish the season in 8th place, 120 points behind champion Loris Hezemans.