| W/L | Warning Letter 
| Others |
| W/L | Water Line
| Others |
| W/L | Whistle Level Crossing ahead
| Others |
| W/L | Wide or Long
| Others |
| WL | Wafer-Level
| Others |
| WL | Wage Loss
| Others |
| WL | Wait List
| Others |
| WL | Waiting List
| Others |
| WL | Walking Liberty
| Others |
| WL | Wander Lead
| Others |
| WL | WanderLust
| Others |
| WL | Wario Land
| Others |
| WL | Warner Lambert
| Others |
| WL | Warning Light
| Others |
| WL | Washington Loop
| Others |
| WL | Wassily Leontief
| Others |
| WL | Watch Language
| Others |
| WL | Watched Literals
| Others |
| WL | Water Level
| Others |
| WL | Water Loop
| Others |
| WL | Waterford Lakes
| Others |
| WL | Waterline
| Others |
| WL | WaveLength
| Others |
| WL | Weak Links
| Others |
| WL | Weak Localization
| Others |
| WL | Weakest Link
| Others |
| WL | Weekend League
| Others |
| WL | Wehrmarcht Luftwaffe
| Others |
| WL | Weight Loss
| Others |
| WL | Wenham Lake
| Others |
| WL | WerkstoffLabor (Spacelab D-1 Experiment)
| Others |
| WL | West Lancashire
| Others |
| WL | West Lane
| Others |
| WL | Wet Location
| Others |
| WL | Wetting Layer
| Others |
| WL | Whatta Loser
| Others |
| WL | whisker Left
| Others |
| WL | White Label
| Others |
| WL | White Leghorn
| Others |
| WL | White Light
| Others |
| WL | White Line
| Others |
| WL | Whole Life
| Others |
| WL | Whole Lysates
| Others |
| WL | Wide Limit
| Others |
| WL | Wigner Lattice
| Others |
| WL | Wild Lifestyle
| Others |
| WL | Wilderness Lodge
| Others |
| WL | William Lewis
| Others |
| WL | Willimantic Library
| Others |
| WL | Wim Lievens
| Others |
| WL | Windmill Logger
| Others |
| WL | Windows Live
| Others |
| WL | Wing Leader
| Others |
| WL | Wing Length
| Others |
| WL | Winners List
| Others |
| WL | Wire Line
| Others |
| WL | Wish List
| Others |
| WL | With Let
| Others |
| WL | With Lines
| Others |
| WL | Wizard Ladder
| Others |
| WL | Wong Lee
| Others |
| WL | Wood's Light [uv]
| Others |
| WL | Word Life
| Others |
| WL | Word Line
| Others |
| WL | Word List
| Others |
| WL | Work load
| Others |
| WL | Working level
| Others |
| WL | Working Levels
| Others |
| WL | World Leading
| Others |
| WL | World Learning
| Others |
| WL | WorldLingo
| Others |
| WL | Wotan And Lite
| Others |
| WL | Would Like
| Others |
| WL | Wright Law
| Others |
| WL | Write Lock
| Others |
| WL | Wrkcfgsts Lin
| Others |