Boring is an unincorporated community and census-designated place (CDP) in Clackamas County, Oregon, United States. It is located along Oregon Route 212 in the foothills of the Cascade mountain range, approximately twelve miles (19 km) southeast of downtown Portland, and fourteen miles (23 km) northeast of Oregon City. A bedroom community, Boring is named after William Harrison Boring, a Union soldier and pioneer whose family built a farm in the area in 1856, before Oregon had received statehood.

The community was officially platted in 1903 after the Portland Railway, Light and Power Company constructed an electric rail line, which operated from Portland to Cazadero. The former railway is now part of the Springwater Corridor, a rail trail which begins in Boring and ends at the Eastbank Esplanade along the Willamette River in southeast Portland. The Boring Lava Field, an extinct volcanic field zone that comprises terrain extending from Boring to downtown Portland, took its name from the community.

Boring was a hub of the timber industry in the Pacific Northwest prior to and during World War I due to the abundance of surrounding temperate coniferous and evergreen forests, as well as its proximity to the Port of Portland. In addition to logging, plant nurseries and agriculture have also historically been major economic forces in Boring.

Boring has often been included in lists of places with unusual names. In 2012, Boring was named a sister city of the village of Dull, Scotland, and later joined Bland, Australia, in the "Trinity of Tedium."

The land on which Boring was built was a former lava field. The Boring Lava Field, which takes its namesake from the community, is located just north of Boring. There are approximately 80 lava vents across the area, remnants of the volcanic activity that occurred there roughly 2.6 million years ago. The lava field extends across surrounding Portland and Vancouver, Washington, though the volcanic centers are extinct. The land that would later become Boring had no known inhabitants, though the Clackamas Tribe had a camp located south of Boring, near present-day Oregon City, along the Willamette River. By 1855, the remaining members of the tribe had relocated to the Grand Ronde. Settlers began to arrive in the Oregon Territory in mid-1800s via the Oregon Trail, after the establishment of Portland.

Boring takes its name after William Harrison Boring, an Illinois native and early resident who began farming there in 1874, and subsequently donated land for the community's first schoolhouse to be built. He was a Union veteran who had moved to Oregon after having fought in the Siege of Vicksburg during the Civil War. William's half-brother, Joseph, had settled in the area in 1856 prior to his arrival.

Boring was platted in 1903 as Boring Junction after the construction of a railway line by the Portland Railway, Light and Power Company. The post office was established and named Boring the same year, which builders of an interurban railway adopted as the name of the community. An electric trolley operated on the railroad line from Portland through Gresham and Boring, ending in Cazadero, which began transporting passengers in 1905. The trolley significantly reduced travel time between Portland and the communities to its east: Horse and buggy travel from Boring to Portland took an average of six hours, while a trip to Portland via the trolley system took only one hour. Though younger students in the area attended a local school built on Richey Road, high school students in Boring commuted via trolley to Gresham and Portland to attend high schools there. The early residents of the area post-settlement were mainly German and Swedish immigrants.

After World War II and the prominence of automobile ownership, the trolley ceased passenger operations to Portland, but continued to travel between Boring and Gresham. The railway went defunct in the following years, and was incorporated as part of the Springwater Corridor, a rail trail that begins in Boring and ends at the Eastbank Esplanade in downtown Portland.