Holladay is an unincorporated community and census-designated place in Benton and Decatur counties in the U.S. state of Tennessee. Holladay is located along Tennessee State Route 192 13.3 miles south-southwest of Camden. Another portion of the community is located at the intersection of I-40 and US 641/SR 69. Holladay has a post office with ZIP code 38341, which opened on February 23, 1887.