Y
- y-axis
- Y-cable
- Y/C
- Y/N
- Y2K
- Y2K bug
- YA (ya)
- YAA (yaa)
- YABA (yaba)
- YACC
- YACC (также yacc)
- Yahoo!
- Yahoo!
- YAML
- yard
- yaw
- yaw
- YCbCr
- YCbCr
- YDKM
- YDT
- year-over-year
- Yellow Book
- Yellow pages
- YHBT
- YHBW
- YHL
- yield
- yield
- YIQ
- YIQ
- YMCK
- YMMV
- Ymodem
- Ymodem
- yobi (Yi)
- yobibit (Yibit)
- yobibyte (YiB)
- yocto-
- yocto- (y)
- YOLO
- yotta-
- yotta- (Y)
- yottabyte (YB)
- YP
- YPbPr
- YR (yr)
- YST
- YTD
- YTTT
