Dennis-Yarmouth Regional High School is a suburban public high school (grades 8–12) in Yarmouth, Massachusetts, United States. It opened in 1957 and was expanded and renovated in 1979, and again in 2006. The school serves the communities of Yarmouth and Dennis, and has an enrollment of approximately 900 students. Dennis-Yarmouth, or known more commonly to the locals as "D-Y", is the second largest high school (in terms of student population) on Cape Cod, behind only Barnstable High School. It is in South Yarmouth, just south of the Mid Cape Highway.

Demographics

Based on data from the Massachusetts Department of Elementary and Secondary Education: As of 2021, Dennis-Yarmouth Regional High School had 881 students, including 440 females, 441 males, and 0 non-binary students.

Athletics

Cross Country

The boys team won the All-State Championship in back to back years, the only boys team in Massachusetts to have done so (the MIAA switched from a single all-state championship race for each gender in cross country to large and small school state championship races in 1990 ). Further, the boys team did it twice, in 1974/1975 and 1989/1990. Harrier magazine ranked them one of the top 25 teams in the United States in 1989 and 1990. The girls team won the Div. I (large schools) All-State team championship in 2006.

Notable alumni