- For the American Indian tribe, see Osage Nation.
- For the mulberry tree (Maclura pomifera) of Arkansas and Texas, see Osage-orange. The Osage tribe used the wood of that tree to make bows, leading to its alternative name, bowwood.
- The tribe once lived along the Osage River in Missouri.
- That river runs through Osage County, Missouri.
- The town of Osage Beach, Missouri lies along the same river (but outside the county).
- Their first reservation was in Osage County, Kansas. Osage State Fishing Lake lies in that county.
- For a town in that county, see Osage City, Kansas.
- They now live in Osage County, Oklahoma, coterminous with the Osage Indian Reservation. Osage Hills State Park lies in the reservation county.
- The small town of Osage, Oklahoma, also known as Osage City, lies within this reservation county.
- The Osage Indian murders of 1921-1923 occurred on their reservation.
- The seat of Mitchell County is Osage, Iowa.
- There is an Osage Township, Minnesota.
- There also is a small village called Osage, Wyoming.
- Daniel Boone settled on a Spanish grant in the Femme Osage valley of Missouri in 1799.
- The United States army built Fort Osage in 1808 in Independence, Missouri, a suburb of Kansas City.
- Osage is also the name of an unincorporated village in northeast West Virginia, northeast of Morgantown, West Virginia.
- There's a street name called Osage Avenue located between Manchester and La Tijera in Westchester, Los Angeles, California.