The match will occur in Honolulu at Aloha Stadium, which served as the longtime home of the Pro Bowl before exhibition match moved into Orlando, Florida, at 20-16.
The Rams and Cowboys Squared-off at the divisional round of the playoffs last January. The Rams defeated the Cowboys 30-22 in their way to some Superbowl LIII look.
The Rams and Cowboys also are scheduled to meet from the 2019 regular season.
A visit to Hawaii is the most up-to-date in a lengthy listing of most pre-season adventures for the Cowboys. Under owner and general manager Jerry Jones, the Cowboys also have played preseason matches in London, Toronto, Tokyo, Mexico City and Monterrey.
Last season, the Rams traveled to Baltimore to put on joint practices with the Ravens before a preseason matchup.
ESPN’s Todd Archer contributed to this report.