What does ITR stand for?

Income Tax Return

Inspection Test Record

Invisible Thread Reel

Instant Timer Recording

Inspection and Test Report

Internet Talk Radio

Internet Talk Radio Audio programs similar to radio broadcasts but distributed over the Internet in the form of files that can be downloaded via FTP. Internet Talk Radio programs, prepared at the National Press Building in Washington, D.C., are 30 minutes to 1 hour in length; a 30-minute program requires about 15 MB of disk space.

Ingress Tunnel Router

Intelligent Text Retrieval

International Transit Route

Independent Technical Review