Československá obchodní banka, a.s. (ČSOB) is one of the largest commercial banks operating in the Czech Republic.^[2] It is a universal bank that offers a full range of banking services to individuals and companies. It operates 280 ČSOB branded branches, and 3,300 Česká pošta (Czech postal company) branches under the brand name Poštovní spořitelna.

The bank is owned by Belgium-based KBC Bank. Until 2008 ČSOB also operated in Slovakia, but in 2008 a new company Československá obchodná banka, a.s. (ČSOB Slovakia) was created under direct control of KBC Bank. Czech ČSOB holds a 47% minority stake in Slovak ČSOB. Since 2011, the bank has sponsored the Czech ice hockey club HC Pardubice, which took the name HC ČSOB Pojišťovna Pardubice.