IBM WebSphere refers to a brand of proprietary computer software products in the genre of enterprise software known as "application and integration middleware".

IBM WebSphere has been available to the general market since 1998.

In June 1998, IBM introduced the first product in this brand, IBM WebSphere Performance Pack.

[1] As of 2012[update] this first component formed a part of IBM WebSphere Application Server Network Deployment.

The following products have been produced by IBM within the WebSphere brand:[2]