| State: | TX |
| Type: | SH |
| Route: | 155 |
| Map Custom: | yes |
| Map Notes: | SH 155 highlighted in red |
| Length Mi: | 111.75 |
| Length Round: | 2 |
| Established: | by 1931 |
| Direction A: | South |
| Terminus A: | in Palestine |
| Junction: | in Frankston in Tyler in Tyler from Tyler to Owentown in Owentown in Big Sandy in Gilmer near Gilmer |
| Direction B: | North |
| Terminus B: | in Linden |
| Counties: | Anderson, Henderson, Smith, Upshur, Marion, Cass |
| Previous Type: | SH |
| Previous Route: | 154 |
| Next Type: | SH |
| Next Route: | 156 |
State Highway 155 (SH 155) is a highway in the U.S. state of Texas. It runs from Palestine to Linden as a mostly divided highway by way of Tyler.
From Palestine to Linden, SH 155 is part of the Blue Star Memorial Highway.
SH 155 begins at US 79 / SH 19 in Palestine northeastward via Frankston to SH 64 at Tyler. Just north of Frankston, a series of three causeways, one measuring a mile in length, crosses Lake Palestine and passes through the resort towns of Coffee City and Dogwood City. Located on the county line, Coffee City is home to a number of liquor stores to serve Tyler residents, due to the fact that Tyler was situated in a dry county until 2012. From Tyler the route continues to the junction of US 271 and SH 31; and then from a point on US 271 northeast of Tyler, northeastward via Big Sandy, Gilmer, Avinger to US 59 (Future I-369) at Linden, a total approximate distance of 123.4miles. The route is concurrent with US 271 on two separate sections in the city of Tyler and the town of Gilmer.
Nearly the entire route consists of a divided highway posted at 70 mph. For many years, one of the sole remaining two-lane segments and a source of congestion was a 9.5miles stretch extending from Frankston to Pert. Construction to build a parallel southbound lane commenced in early 2007 and was completed in 2011, upgrading this stretch of Highway 155 to a full 4-lane divided highway.
SH 155 was originally designated on March 19, 1930 on a route from Gilmer to Marshall. On December 22, 1936, it was extended southwest to Tyler.[1] On September 26, 1939, the section from Marshall to Gilmer was transferred to SH 154 when it was extended east from Quitman.[2] The route was extended south to Palestine and north to Linden on May 18, 1944. On August 28, 1958, SH 155 was signed, but not designated, along Spur 226. On August 29, 1990, Spur 226 was cancelled and transferred to SH 155 officially. Spur 226 was reused for a route in Terrell on July 11, 2017.