Stephen Mattin is a British automobile designer. He is known as the chief designer of AvtoVAZ Lada, as well as the designer of Mercedes ML-Class and GL-Class E vehicles.

Lada is a brand of cars manufactured by AvtoVAZ, a Russian state-owned company. From January 2021 until May 2022, Lada was integrated with then sister brand Dacia into Renault's Lada-Dacia business unit.