The 1928 Dayton Triangles season was their ninth in the National Football League (NFL).
The team played all seven games of its schedule on the road.
[1] The team failed to improve on their previous output of 1–6–1, scoring just 9 points all year and losing all 7 of its contests — 6 by shutout.
[2] They finished in last place, tenth in the league.
This article relating to an American football season is a stub.