The SGB Premiership 2018 was the 84th season of the top division of Great British Speedway in 2018. The season ran between March and October 2018 and had eight teams participating. The line-up of teams remained the same as in 2017. The Swindon Robins were the defending champions after winning the title in 2017. BT Sport continued its TV coverage of the SGB Premiership in 2018. Poole Pirates defeated King's Lynn Stars in the Play off final. It was Poole's tenth tier one title, which brought them level in second place with the Wembley Lions in the historical records.

The Swindon Robins are an motorcycle speedway team from England, established in 1949 that have competed primarily in the top division of speedway league competition in the United Kingdom. They are five times league champions of the United Kingdom.