分布式算法（英语：Distributed algorithm），一种算法类型。为分布式计算而设计，它运行在一群相互链接的处理器所构成的计算机硬件平台上。分布式算法以并行方式运行，是平行算法下的子类别。因为同时运行在不同处理器上，对算法其他部份运行情况的信息所知有限，使得这类型的算法较为困难。

A distributed algorithm is an algorithm designed to run on computer hardware constructed from interconnected processors. Distributed algorithms are used in many varied application areas of distributed computing, such as telecommunications, scientific computing, distributed information processing, and real-time process control. Standard problems solved by distributed algorithms include leader election, consensus, distributed search, spanning tree generation, mutual exclusion, and resource allocation.