The 2019 NASCAR Whelen Euro Series is the eleventh Racecar Euro Series season, and the seventh under the NASCAR Whelen Euro Series branding. Alon Day and Ulysse Delsaux entered the season as the defending champion in the Elite 1 and Elite 2 category respectively, however Delsaux will not defend his title as he will move up to Elite 1 for the 2019 season.

The NASCAR Whelen Euro Series is an official NASCAR stock-car racing series based in Europe. It is one of NASCAR's four international-sanctioned series, alongside the NASCAR Canada Series, the NASCAR Mexico Series and the NASCAR Brasil Sprint Race, and is the only one based in Europe.