Simuka (Marathi: सिमुक) (230–207 BCE) was an Indian king and the founder of the Satavahana dynasty. He is described as Sishuka or Sindhuka in the Puranas. He is also known as Gadabhilla, father of Vikrama in the accounts of the Jains, and is said to have ruled in the area of Pratishthan and Malwa.
He was succeeded by his brother Kanha (or Krishna) (r. 207–189 BCE), who further extended his kingdom to the west and the south.