Samaki Ijuma Walker (born February 25, 1976) is an American retired professional basketball power forward and center.

Walker played college basketball at the University of Louisville and was drafted in 1996 by the Dallas Mavericks, where he played until 1999. Walker continued to play for the NBA with the San Antonio Spurs (1999–2001), Los Angeles Lakers (2001–2003), Miami Heat (2003–2004), Washington Wizards (2004–2005), and Indiana Pacers (2005–2006). Afterwards, Walker played in various international and minor leagues.

Walker has two children: son Dabaji and daughter Sakima.
After his 17-year-old nephew Deandre Hillman died from cardiac arrest in 2001, Walker joined the non-profit organization Start-A-Heart, which provides automated external defibrillators to schools and other public facilities. He spent the 2006-07 season forming Life Choices Foundation, a nonprofit aiming to keep youth in inner city Los Angeles out of trouble.

Samaki is now a trainer for his own player development company in Los Angeles known as P.R.I.M.E. Basketball.