Gotthard Johann von Knorring (1744/1746 – 1825; Russian: Богдан Фёдорович Кнорринг, Bogdan Fyodorovich Knorring) was a Baltic German who was a soldier in the Russian Army, rising to become a general.

When Paul I started his reign, Knorring withdrew from the military for some years.

He participated in the war against France in 1807 but was recalled due to disagreements with the commanding general, Levin August von Bennigsen.

In December 1808 he was appointed commander of the Russian forces in Finland after Friedrich Wilhelm von Buxhoeveden, and under his command the Russian forces crossed the Gulf of Bothnia on the ice and invaded Sweden proper.

Shortly after, in March 1809 the command of the Russian forces transferred to Michael Andreas Barclay de Tolly.