The 2015 English cricket season was the 116th in which the County Championship had been an official competition.
It began in April with a round of university matches, and continued until the conclusion of a round of County Championship matches in late September.
Three major domestic competitions were contested: the 2015 County Championship, the 2015 Royal London One-Day Cup and the 2015 NatWest t20 Blast.
During this season, two international teams toured England.
The latter tour saw England win The Ashes Test series 3–2; it was the 78th test series between the two sides.