Boyce, 33, said he was delighted to be returning to Adelaide.
“I’m so excited to get back to where my Big Bash journey began,” Boyce said. “I have enjoyed my time with the Strikers and am very happy to be back. For a tournament that is only 12 years old, experience is extremely valuable and I enjoy the idea of working with players like Travis Head and Alex Carey Summer.
“I already have great relationships with many of the guys and I look forward to doing everything I can to bring Adelaide Oval another title.”
“We are very happy that Cameron is returning to the Strikers,” said Gillespie. “He will bring a wealth of experience and expertise to our squad.
“Cameron is a proven Big Bash performer, with a BBL title just part of a prolific career highlighted by a large number of wickets. We look forward to welcoming Cameron to Adelaide and back to the Strikers family.”