Conrad William Dierking was an American professional basketball player from 1958 to 1971.

The 1958 NBA draft was the 12th annual draft of the National Basketball Association (NBA). The draft was held on April 22, 1958, before the 1958–59 season. In this draft, eight NBA teams took turns selecting amateur U.S. college basketball players. In each round, the teams select in reverse order of their win–loss record in the previous season. The draft consisted of 17 rounds comprising 88 players selected.