Tie Siding is a tiny unincorporated community in far southeastern Albany County, in southeastern Wyoming, United States, approximately eighteen miles south of Laramie, and eight miles north of the Colorado border.

The population is very small, and Tie Siding was not counted as a census-designated place in the 2010 Census.

The small community interacted with nearby Colorado railroad towns, such as Virginia Dale, LaPorte and Pingree Park.

[1] In 1886, Edward Ivinson, a wealthy Laramie investment banker and dry goods merchant, got off a train when it made a stop in Tie Siding to take on water, and decided he wanted to build a house and a hospital here.

[2][3] As of 2015[update], the Tie Siding site consists of only a combination flea market and post office.