William Herbert Dieterich (December 18, 1897 – July 23, 1964) was an attorney and jurist from Wisconsin.

He served as a trial attorney in Milwaukee and Washington Counties for 36 years.

[2] Dieterich was first elected to the Wisconsin Supreme Court in 1958, when he defeated Emmert L. Wingert in 1958 to become a Justice.

[2] In 1961, he convinced the Wisconsin Legislature to employ law clerks for the Supreme Court.

[2] He had a son William H. Dieterich III with his wife Kathryn Block.