98th Brigade may refer to:
Bangladesh 98th Composite Brigade
British India 98th Indian Infantry Brigade
Serbia 98th Air Brigade
Spain 98th Mixed Brigade
United Kingdom 98th Brigade (United Kingdom) 98th Brigade, Royal Field Artillery, a British Army unit during World War I 98th (Surrey and Sussex Yeomanry) Brigade, Royal Field Artillery, a British Army unit after World War I
See also 98th Division (disambiguation) 98th Regiment (disambiguation)