The call letters WHDH may represent:
- WHDH (TV) (digital channel 42, virtual channel 7): a television station in Boston, Massachusetts that currently exists
- WHDH-TV (defunct) channel 5: a television station in Boston that existed from 1957 to 1972; replaced by WCVB-TV
- WEEI AM 850, a radio station in Boston that previously used the WHDH calls