Lawrence Armstrong (1664 – 6 December 1739) was a lieutenant-governor of Nova Scotia and acted as a replacement for the governor, Richard Philipps, during his long absences from the colony.
Armstrong arrived in the New World in 1711 as a ship-wreck victim along with troops headed to take Quebec.
He and a contingent of men were dispatched to strengthen Annapolis Royal, in Nova Scotia.
Armstrong's debts accumulated as the problems of supporting his company increased, and with his Boston creditors pressing him, he went to England in 1715 to seek redress.
At age 75 and suffering from illness, on 6 December 1739 Lieutenant-governor Armstrong allegedly committed suicide at Annapolis Royal, N.S.