Simuka (Brahmi:𑀲𑀺𑀫𑀼𑀓, Si-mu-ka) was an ancient Indian king belonging to the Satavahana dynasty, which ruled the Deccan region.

[4] In the Puranas, the name of the first Andhra (Satavahana) king is variously spelt as Shivmukha, Sishuka, Sindhuka, Chhismaka, Shipraka, Srimukha, etc.

In addition, Indica by Megasthenes (350 – 290 BCE) mentions a powerful tribe named "Andarae", whose king maintained an army of 100,000 infantry, 2,000 cavalry and 1,000 elephants.

If Andarae is identified with the Andhras, this can be considered additional evidence of Satavahana rule starting in 3rd century BCE.

According to Jain legends, he adopted Jainism; but, in the last years of his life, he became a tyrant, for which he was deposed and killed.

According to the Puranas: "The Andhra Simuka will assail the Kanvayanas and Susarman, and destroy the remains of the Sungas' power and will obtain this earth.

The Naneghat cave inscription of Satakarni lists his family members: it mentions Simuka's name, but not that of Kanha.