Top-quark physics plays an important r\^ole at hadron colliders
such as the Tevatron at Fermilab or the upcoming
Large Hadron Collider (LHC) at CERN.
Given the planned experimental
precision, detailed theoretical predictions are
mandatory. In this article we present analytic results for the
complete weak
corrections to gluon-induced top-quark pair production
--- neglecting purely photonic corrections, completing
our earlier results for the quark-induced reaction. As an
application we discuss top-quark pair production at the Tevatron and
LHC. In particular we show that, although they are small for inclusive
quantities,
weak corrections can be sizeable for differential distributions.
