The Oklahoma City Thunder have a rich history with jersey number 30, previously worn by 13 players since the franchise's inception in 1967. Among them, Kevin Williams stands out, having played for the Seattle SuperSonics from 1986 to 1988. A TCU alum, Williams was selected in the 1983 NBA Draft by the San Antonio Spurs, and his career included stints with the Cleveland Cavaliers and various domestic leagues before joining the Sonics. During his two seasons in Seattle, he averaged 5.7 points, 1.4 rebounds, and 1.1 assists per game while wearing the number 30 jersey.

As the Thunder celebrate their jersey history, the legacy of players like Williams highlights the evolution of the franchise from the SuperSonics era to its current identity. This historical perspective offers fans a deeper appreciation for the players who contributed to the team's journey.