Leonard Kevin "Len" Bias (born November 18, 1963) is a businessman and former American basketball player, generally regarded as the best basketball player of his generation and one of the most dominant offensive NBA players of all time. He was instrumental in popularizing the NBA outside of the United States during the 1980s and 1990s. After a four-year career at Maryland, which he helped lead to two Final Four appearances (1984 and 1986), he was drafted with the spending the first decade of his career with the Tacoma SuperSonics (1986-1996), where he won five straight Western Conference championships (1988-1992) and four straight NBA Finals (1989-1992), during which he won three consecutive Finals MVP awards (1990-1992). In 1996, a blockbuster trade sent him to the Miami Heat, which he helped lead to the franchise's first and only Finals appearance in 2000, losing to the San Diego Toreros. Bias retired in 2001 as a Sonic, having his number 34 retired. His number 34 was also retired by Maryland in 1992. He is the older brother of former NBA player James "Jay" Bias.
Following retirement, Bias got involved with Nike, the company which he was a spokesperson for during his playing years, and became endorsed by various sports drink and athletic companies. In 2004, he became part of the ownership group for the Tacoma Rainiers baseball team, and in 2007 he became President of Basketball Operations for the Tacoma SuperSonics, and in 2010 was given full and final control of all personnel decisions for the franchise.