Higgs boson mass in split supersymmetry at two-loops

The mass of the Higgs boson in the split-supersymmetric standard model is calculated, including all one-loop threshold effects and the renormalization group evolution of the Higgs quartic coupling through two-loops. The two-loop corrections are very small (<< 1 GeV), while the one-loop threshold corrections generally push the Higgs mass down several GeV.