John I of Leuchtenberg

John I of Leuchtenberg (c. 1330–1407) was the second son of Landgrave Ulrich I of Leuchtenberg and Anna of Nuremberg. After his father died in 1334, he and his elder brother Ulrich II ruled jointly until 1366, when they divided the landgraviate: John received the eastern part and kept his seat at Pleystein, while the two brothers governed the south together.

In 1376 Emperor Charles IV raised him to landgrave of Leuchtenberg and count of Hals near Passau. He married Metze of Rožmberk and died on 2 December 1407.