Baron Wilhelm von Biela (German: Wilhelm Freiherr von Biela; March 19, 1782 – February 18, 1856) was a German-Austrian military officer and amateur astronomer. Wilhelm von Biela was born in Roßla, Harz (Northern Germany). He was a descendant of a prominent Protestant noble family originally from what is now the Czech Republic, the family having been exiled to Saxony after its head, Friedrich von Biela, was executed in Prague in 1621 during the religious wars of the period. Biela was the last member of his branch of the family. In the 1840s Biela retired to Venice, where he died in 1856.