Wenglewski has also played for the USA Selects and multiple age-grade sides representing the United States.
[6] Wenglewski represented the United States, playing for the Men's Collegiate All-Americans' (MCAAs) in a September 2017 match against Oxford University.
[10] Wenglewski was first named to the roster for the USA Eagles for the 2018 Americas Rugby Championship,[11] but he did not make an appearance during the competition.
Wenglewski again was named to the Eagles' roster in October 2018, replacing an injured Olive Kilifi ahead of the 2018 end-of-year tests.
[12] Wenglewski made his debut for the Eagles on November 3, 2018, starting at prop, in an uncapped match against the Māori All Blacks—a 59–22 defeat.