特遣队，为军事术语，相近用语有分遣队、特支队及特攻队等，然而内涵不同。

在****中，系指因应特定任务而临时组织而成的遣派部队。其特性有

特遣队因应军种与任务别而有所变化。一般在平时，就有设置计划这种因应突发状况而能运行任务的紧急出动部队，而非固定编制；任务完成后，人员再返回原来部队。

例如：

A task force (TF) is a unit or formation established to work on a single defined task or activity. Originally introduced by the United States Navy, the term has now caught on for general usage and is a standard part of NATO terminology. Many non-military organizations now create "task forces" or task groups for temporary activities that might have once been performed by ad hoc committees.