- DLSM stands for Distinct Lattice Spring Model (engineering)
- DLSM stands for Discrete Least Squares Meshless (numerical simulation model)
- DLSM stands for Defence Long Service Medal (Australian Defence Force)
- DLSM stands for Debra L Sipple Memorial (Milford, Delaware homeless animal charity)
- DLSM stands for Directory Location Service Monitor
DLSM