 List of unnumbered minor planets: 2001 P–R

The "List of unnumbered minor planets: 2001 P–R" refers to a catalog of minor planets (also known as asteroids) that were observed and designated with provisional names in the year 2001, specifically those that start with the letters P through R. Minor planets are typically designated by a provisional designation when they are discovered, which consists of the year of discovery followed by a letter (or letters) indicating their order of discovery within that year.