Top-quark physics plays an important r\^ole at hadron colliders
such as the Tevatron at Fermilab or the LHC at CERN. Given the planned
precision at these colliders, precise theoretical predictions are
required. In this paper we present the complete electroweak
corrections to QCD-induced top-quark pair production in
quark–antiquark annihilation. In particular we provide compact
analytic expressions for the differential partonic cross section,
which will be useful for further theoretical investigations.