  We present next-to-leading order perturbative QCD predictions for
four-jet-like event-shape observables in hadronic Higgs decays. To this end, we
take into account two Higgs-decay categories: involving either the
Yukawa-induced decay to a $b\bar{b}$ pair or the loop-induced decay to two
gluons via an effective Higgs-gluon-gluon coupling. We present results for
distributions related to the event-shape variables thrust minor,
light-hemisphere mass, narrow jet broadening, $D$-parameter, and Durham
four-to-three-jet transition variable. For each of these observables we study
the impact of higher-order corrections and compare their size and shape in the
two Higgs-decay categories. We find large NLO corrections with a visible shape
difference between the two decay modes, leading to a significant shift of the
peak in distributions related to the $H\to gg$ decay mode.
