Tanglewilde is a census-designated place (CDP) in Thurston County, Washington, United States, part of the Urban Growth Area of the city of Lacey. The population was 5,892 at the 2010 census.

Tanglewilde is located at 47°3′6″N 122°46′53″W / 47.05167°N 122.78139°W / 47.05167; -122.78139 (47.051718, -122.781491).

According to the United States Census Bureau, the CDP has a total area of 1.5 square miles (3.8 km²), all of it land.

It is together with the city of Lacey, with Tanglewilde south of Martin Way, and Thompson area to the north. Tanglewilde is within the North Thurston Public Schools district. Elementary schools in the area include Lydia Hawk and Olympic View. The main middle school is Nisqually Middle School. Most high school students in Tanglewilde attend River Ridge High School.

As of the census of 2000, there were 5,670 people, 2,057 households, and 1,491 families residing in the CDP. The population density was 3,919.1 people per square mile (1,509.8/km²). There were 2,167 housing units at an average density of 1,497.8/sq mi (577.0/km²). The racial makeup of the CDP was 76.04% White, 5.04% African American, 2.17% Native American, 8.95% Asian, 1.06% Pacific Islander, 3.67% from new races, and 6.07% from two or more races. Hispanic or Latino of any race were 9.10% of the population.