9W or 9-W may refer to:
Transportation Jet Airways (former IATA code: 9W), a former Indian airline List of highways numbered 9W U.S. Route 9W, a highway in the states of New York & New Jersey New York State Route 9W Mississippi Highway 9W
Other uses 9th meridian west (9°W), a longitude coordinate
See also GE BB40-9W, locomotive C44-9W, a model of GE Dash 9-44CW locomotive C40-9W, a model of GE Dash 9-40CW locomotive Z-9W, a model of Harbin Z-9 a Chinese military helicopter W9 (disambiguation)