YC
- List of yard and district craft of the United States Navy
- S-Video
- Y Combinator
- Yakima County, Washington
- Yale College
- Yellow Claw (DJs)
- Yellowcard
- Yellowstone Club
- Yoctocoulomb
- Yottacoulomb
- Youth Conference (Hong Kong)
- Yuba City, California
- Yugoslav Committee
- Yugoslav Cup
- Yung Chris
- Yury G. Chernavsky