Maksim Perfilyev (Russian: Максим Перфильев, (? – after 1638) was a Cossack explorer of Eastern Siberia and the first Russian to reach Transbaikalia. He was renowned for his diplomatic skills in negotiations with Tunguses, Mongols and Chinese.
Perfilyev gave his name to the village of Maksimovschina, where on the banks of the Irkut River were his hunting lands. Maksimikha Bay on Lake Baikal (part of the larger Barguzin Bay) and Cape Maksimin in that bay, as well as the nearby Maksimikha village are also named after him. He was the first settler in Maksimikha, where he lived with his wife from Buryat people.
- Lantzeff, George V., and Richard A. Pierce (1973). Eastward to Empire: Exploration and Conquest on the Russian Open Frontier, to 1750. Montreal eduacadtion: McGill-Queen's U.P.