Gottlieb Mittelberger (1714 – 1758) was a German author, schoolmaster, organist, and Lutheran pastor. He was best known for his work Journey to Pennsylvania (1756). Mittelberger's travelogue provides a firsthand historic account of the misery and exploitation of German immigrants during the US colonial period. In his work, he tries to convince his fellow Germans not to immigrate to the American colonies, as the forfeiture of freedom, cost of money, lack of health, and loss of life are too exorbitant to risk and sacrifice. Although never an indentured servant, Mittelberger's written testament is one of several surviving historic works describing the hardships of the redemption system.