Originally, Taber was known as Tank No. 77, and was used by the railway to fill up on water. In 1903, it is said that the first Mormon settlers from the U.S. were the ones to establish a hamlet at the Tank. After the town's post office was built in 1907, the CPR decided to call the town Tabor, probably after Mount Tabor in the Holy Land. However, various letters and station heads came out printed Taber, so the CPR changed the name to make it match the records.