Bayside may refer to a number of places:
In the United States:
- Bayside, California
- Bayside High School (disambiguation), several schools in the U.S. and Canada
- Bayside Marketplace, Miami, Florida
- Bayside (Jeanerette, Louisiana), listed on the NRHP in Louisiana
- Bayside Historic District (Bayside, Maine), listed on the NRHP in Maine
- Bayside, a residential zone in Northport, Maine
- Bayside, a neighborhood in Portland, Maine
- Bayside, Queens, New York, a neighborhood in New York City
- Bayside (LIRR station), rail station in Queens
- Bayside, Texas
- Bayside, Wisconsin
In Canada:
- Bayside, Charlotte County, New Brunswick
- Bayside, Newfoundland and Labrador
- Bayside, Nova Scotia
- Bayside, Ontario
- Bayside, Prince Edward Island
- Bayside, Westmorland County, New Brunswick
Other places:
- Bayside Comprehensive School, Gibraltar
- Bayside, Dublin, in Ireland
- City of Bayside, in the Australian State of Victoria, in the suburbs of Melbourne
Other uses:
- Bayside (album), by Bayside
- Bayside (band), an American punk rock band
- Bayside Shakedown, a Japanese TV series
- Bayside Shakedown: The Movie, a movie based on the TV series
- Bayside Shakedown 2, a second movie based on the TV series