William Landon Oliphant (23 February 1900 – 7 May 1947) was an American Protestant preacher and polemicist.

After graduating from High School at Oaks, Olyphant attended Western Oklahoma Christian College.

Oliphant was a Minister, Oak Cliff Church of Christ, Dallas, Texas.

In January 1935 in Dallas, Oliphant held a debate with John Richard Rice, a Baptist evangelist and pastor.

[5] Most notably, he debated Charles Lee Smith, President of the American Association for the Advancement of Atheism of New York City, on August 15 and 16, 1929.