Caroline LeSueur (June 11, 1814 – October 1, 1898) was a Mormon pioneer and one of the founders of St. Johns, Arizona.

LeSueur was born Caroline Le Gresley on June 11, 1814, in Velle Babet, Jersey, Channel Islands.

They moved to Saint Helier, the seaport capital of Jersey, where John worked first as a teamster, and then in a candle factory.

Caroline operated a small grocery store in her front room where she sold vegetables grown in her garden.

However, that year John LeSueur died, leaving his wife with four children at home, ages 6 to 14, plus two married daughters.