The 1975 English cricket season was the 76th in which the County Championship had been an official competition. The inaugural Cricket World Cup was won by West Indies, who defeated Australia in an exciting final. Australia toured England to compete for the Ashes and won the series 1–0. Leicestershire won their first County Championship title.

• County Championship - Leicestershire
• Gillette Cup - Lancashire
• Sunday League - Hampshire
• Benson & Hedges Cup - Leicestershire
• Minor Counties Championship - Hertfordshire
• Second XI Championship - Surrey II
• Wisden - Ian Chappell, Peter Lee, Rick McCosker, David Steele, Bob Woolmer

England played a four-Test Ashes series against Australia but lost the first at Edgbaston following Mike Denness's surprising decision to put Australia in.^[1] The other three were drawn, the one at Headingley being abandoned in controversial circumstances when the pitch was destroyed overnight by political protestors. Australia therefore retained the Ashes.