Silas Merritt Robertson, known as Si Robertson and often referred to as "Uncle Si", is an American television personality, veteran, and a retired reed maker for duck calls at Duck Commander. He is best known for his role on A&E's Duck Dynasty, on which he has emerged as a breakout cast member. He has also appeared on other shows such as the Outdoor Channel's Buck Commander and The Duckmen of Louisiana, and was the eponymous host of the Duck Dynasty spin-off Going Si-Ral. Si has also made a guest appearance on Last Man Standing, and in Big Idea Entertainment's Veggie Tales episode Merry Larry and the True Light of Christmas as Silas the Narrator.

Duck Commander is an American hunting and outdoor recreation company in West Monroe, Louisiana. Founded by Phil Robertson, a football quarterback at Louisiana Tech University, he developed and patented the company's namesake duck call the Duck Commander. He began his business in a dilapidated boat, where he spent 25 years making duck calls from Louisiana cedar trees. Phil and Miss Kay's third son Willie Robertson is the company's chief executive officer. Willie and his wife Korie expanded the business into a multimillion-dollar enterprise. Besides duck-hunting equipment, they also manufacture deer-hunting merchandise under the Buck Commander brand, fishing gear with their Fin Commander brand, and turkey-hunting merchandise under the Strut Commander brand.