Co-written by Matafeo, Alice Snedden and Nic Sampson, the new six part series will continue the story of millennial Londoner Jessie (Matafeo) as she navigates the complications of becoming romantically involved with famous movie star Tom (Nikesh Patel).
Series 3 will see Matafeo and Snedden taking on the director role for the first time.
Rose Matafeo says: "A third? Sure. Fine. I'm truly thrilled to bring this incredibly talented cast back for a third instalment, and equally excited to clamber into the director's seat alongside my nice friend Alice Snedden who I cannot seem to get rid of."
Gregor Sharp says: "Starstruck is a blast of fresh comedy air, perfectly capturing the emotional mayhem of a new relationship with sharp wit, dry humour and a truthful eye - we can't wait to see what Rose and the team have in store for Jessie and Tom in the new series."
Sarah Aubrey from HBO Max says: "Rose has created a show that strikes just the right balance of heart and humour. Starstruck is exactly the kind of rom-com that we love at HBO Max, and we are so happy to see Jessie and Tom's story continue."