Heavy Mental is the debut studio album by the American rapper Killah Priest, released in March 1998. Killah Priest is an associate of hip-hop group Wu-Tang Clan and a member of the group Sunz of Man.

The album contains references to Judeo-Christian-Islamic mythology and theology, drawing parallels to the condition of Black people in the United States to that of the Jewish people during Exodus. A notable track on the CD is "B.I.B.L.E. (Basic Instructions Before Leaving Earth)", which had appeared on GZA's 1995 Liquid Swords album in a slightly different form. Another is the title track, which features Killah Priest rhyming in a style reminiscent of slam poetry and prominently features a didgeridoo. "One Step", with its refrain of "Your arms too short to box with God", reached No. 84 on the Billboard Hot R&B/Hip Hop singles chart. The album peaked at No. 24 on the Billboard 200 and No. 4 on the Top R&B/Hip Hop charts.