| MTST | Magnetic Tape Selectric Typewriter | 磁带选择打字机 |
| MTST | Maneuvering Target Statistical Tracker | 机动目标统计跟踪器 |
| MTST | Microtest, Inc. | Microtest公司。 |
| MTST | Movimento dos Trabalhadores Sem Teto (Social movement of Brazil) | Movimento dos Trabalhadores Sem Teto（巴西社会运动） |
| MTST | Minimal Task Spanning Tree | 最小任务生成树 |