- DSTL stands for Defence Science Technology Laboratory (UK government, part of the MoD, formally DERA)
- DSTL stands for Distributed-Source Transmission Line (electricity)
- DSTL stands for Domain-Specific Test Language
- DSTL stands for Deep Soft-Tissue Leiomyoma
- DSTL stands for Defence Scientific and Technical Laboratories (UK)
- DSTL stands for Deputy Security Team Leader (various companies)
DSTL