Leo Williams (born 24 July 1959), also known as E-Zee Kill, is an English-Jamaican bassist residing in the United Kingdom.

Williams, together with Don Letts and drummer Greg Roberts, formed the band Screaming Target after Big Audio Dynamite's demise.

[1] Later, Williams joined Dreadzone, a group with his former bandmate Dan Donovan, and, again, Greg Roberts.

In March 2007, it was announced that—in addition to his work with Dreadzone, Williams would be a touring bassist for Carbon/Silicon, Mick Jones' latest musical endeavor.

Williams also featured in the science fiction action film The Fifth Element (1997) as the fuel loader of the Fhloston Paradise shuttle.