В честь Генри Клея (частично) -Mount Clay in the Presidential Range of New Hampshire was named for Clay, since renamed Mount Reagan by the state legislature but not by the federal Board on Geographic Names
Sixteen Clay counties in the United States, in Alabama, Florida, Georgia, Illinois, Indiana, Kansas, Kentucky, Minnesota, Mississippi, Missouri, Nebraska, North Carolina, South Dakota, Tennessee, Texas, and West Virginia. (Clay County, Iowa is named for his son.)
Ashland Ave. in Chicago, Illinois; Ashland, Virginia, Ashland County in Ohio and Wisconsin were named for his estate, as were the cities of Ashland in Kentucky, Alabama, and Pennsylvania.
Ashland, Missouri, was named after Clay's Lexington, Kentucky estate, and Henry Clay Blvd was named for him in the same city.
In New Orleans: uptown – Henry Clay Avenue, and downtown – a 20-foot-tall monument erected in 1860 at Canal Street and St. Charles Avenue/Royal Street, and moved to the center of Lafayette Square in 1901.
Many schools throughout the U.S., including Clay High School in South Bend, Indiana, Henry Clay High School in Lexington, Kentucky,[57] Henry Clay Middle School in Los Angeles, California, Henry Clay Elementary School in the Hegewisch neighborhood in Chicago, Henry Clay School in Whitefish Bay, Wisconsin and Henry Clay Elementary School in his birthplace, Hanover County, Virginia.
The Instituto Educacional Henry Clay in Caracas, Venezuela, a bilingual private school
The Clay Dormitory at Transylvania University in Lexington, Kentucky
The Lafayette class submarine USS Henry Clay (SSBN-625), the only ship of the United States Navy named in his honor, although the USS Ashland (LSD-1) and USS Ashland (LSD-48) are named for his estate
Clay, New York, including the road Henry Clay Blvd.
Henry Clay Village, or Breck's Mill Area, on the left bank of Brandywine Creek in Wilmington, Delaware, factory and mill worker's residences.
Clay is one of the many senators honored with a cenotaph in the Congressional Cemetery.