Mazinkaizer SKL (マジンカイザースカル Majinkaizā Sukaru) is a Japanese OVA sequel to Go Nagai's Mazinkaiser, and spin-off to the Mazinger Z series.
Along the OVA series, the manga titled Mazinkaizer SKL Versus (マジンカイザーSKLヴァーサス majinkaizā skl vāsasu), authored by Kazumi Hoshi, is published online in the magazine for mobile phones Shu 2 Comic Gekkin by Emotion (Bandai), starting on April 23, 2010.