  Recent numerical calculations of the glueball spectrum in QCD, in SU($N$)
Yang-Mills theory in the large-$N$ limit and in candidate theories of strongly
interacting dynamics beyond the standard model (in which the lowest-lying
scalar plays the role of the Higgs boson) are reviewed and their implications
for our theoretical understanding of glueballs in QCD-like theories and in
strongly coupled gauge theories with a (near-)conformal dynamics are discussed.
