Capt. George Baker Leavitt Sr. (1860 – 1925) was a Maine-born mariner who captained several whaling vessels out of New Bedford, Massachusetts. The steam whalers captained by Leavitt were active in the whaling fishery off the Alaska North Slope, where Leavitt met and married an Inupiaq woman. The mariner befriended many early Arctic explorers, whom he replenished with supplies and provided transportation to, as well as assisted in Arctic exploration. Leavitt Island in the Beaufort Sea's Harrison Bay is named for the early New England whaling captain.