The 1977 Rothmans International Series was an Australian motor racing competition open to Formula 5000 Racing Cars. The series, which was the second Rothmans International Series, was won by Warwick Brown driving a Lola T430 Chevrolet.
The series was contested over four rounds with one race per round.
Series points were awarded on a 9-6-4-3-2-1 basis for the first six places at each round.
There were only five classified finishers at the Sandown Park round.