The 2010 British 125 Championship season was the 23rd British 125cc Championship season, the class is open to anyone of any age and sex. James Lodge stayed in the class after winning the championship last season, and was looking to be the first person to successfully defend the British 125cc Championship. With a number of riders leaving to move up to other classes such as superstock 600, new challengers emerged to challenge for the title. With the two stroke classes disappearing from the world scene in 2012, the future of the 125 championship in Britain is looking doubtful.