  Gauge-Higgs grand unification is formulated. By extending $SO(5) \times
U(1)_X$ gauge-Higgs electroweak unification, strong interactions are
incorporated in $SO(11)$ gauge-Higgs unification in the Randall-Sundrum warped
space. Quarks and leptons are contained in spinor and vector multiplets of
$SO(11)$. Although the KK scale can be as low as $10 $ TeV, proton decay is
forbidden by a conserved fermion number in the absence of Majorana masses of
neutrinos.
