LL
- l. l. – loco laudato (Latin: "in the place quoted")
- LL – (i) Land Line (telephone) – Last Log – Late Latin – Left Limit – Lex Luthor (Superman character) – Light Line – Limited Liability – Linked List – Little League
- LLAD – (i) Low Level Air Defence
- LLB – (i) Legum Baccalaureus (Latin: Bachelor of Laws)
- LLC – (i) Limited Liability Company
- LLGC – (i) Llyfrgell Genedlaethol Cymru (National Library of Wales) – London Lesbian and Gay Centre
- LLLTV – (i) Low-Light Level Television
- LLNL – (i) Lawrence Livermore National Laboratory
- LLP – (i) Limited Liability Partnership
- LLTI – (i) Limiting Long-Term Illness – Long Lead Time Item
- LLTR – (i) Low-Level Transit Route
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