- DLL stands for Dynamic Link Library
- DLL stands for Data Link Layer
- DLL stands for David Lloyd Leisure (various locations)
- DLL stands for Dual Language Learner (multilingual)
- DLL stands for Dynamically Loaded Library
- DLL stands for Doubly Linked List
- DLL stands for Direction du Livre et de la Lecture (French: Directorate of Books and Reading)
- DLL stands for Dual Laterolog (petrophysics)
- DLL stands for Delay Lock Loop (FPGA)
- DLL stands for Digital Delay Locked Loop
- DLL stands for Dan Lain-Lainnya, (Indonesian: And So Forth; Et cetera)
- DLL stands for Data Link Level
- DLL stands for Data Link Library (aviation)
- DLL stands for Double-Loop Learning
- DLL stands for Design Liquid Level (storage tanks)
- DLL stands for Design Limit Load (aviation)
- DLL stands for Dial Long Lines
- DLL stands for Dial Long Line Equipment
- DLL stands for Down Line Loading
- DLL stands for Discharge Line Length
- DLL stands for Disclosure Limitations List
- DLL stands for Disapproved Lower Level
DLL