The 2005 English cricket season was the 106th in which the County Championship had been an official competition. Before it began, a resurgent England cricket team had won four Test series in a row, going unbeaten through the 2004 calendar year. The start of the international season saw England defeat Bangladesh 2–0 in their two-match series, winning both Tests by an innings. This was followed by a tri-nations one-day tournament that also featured Australia. Australia still started the Test series as favourites but most fans expected England to put up a challenge.

Essex County Cricket Club is one of eighteen first-class county clubs within the domestic cricket structure of England and Wales. It represents the historic county of Essex.