The 204th Vukovar Brigade () of the Croatian Army was a military unit of the Republic of Croatia that led the defence of the city of Vukovar during the 1991 Battle of Vukovar, in the Croatian War of Independence. At its peak it was composed of around 2,200 men, of which around 770 in active combat. A total of 921 soldiers died, 457 went missing in action, 770 were wounded, and 1527 were captured. A total of 5,497 soldiers were part of the brigade over the course of the entire war.