Baldwin, Count of Hainaut

Baldwin, Count of Hainaut may refer to:

• Baldwin I, Count of Hainaut (r.  1051–70), also Baldwin VI of Flanders
• Baldwin II, Count of Hainaut (r. 1070–98)
• Baldwin III, Count of Hainaut (r. 1098–1120)
• Baldwin IV, Count of Hainaut (r. 1120–1171)
• Baldwin V, Count of Hainaut (r. 1171–95), also Baldwin VIII of Flanders
• Baldwin VI, Count of Hainaut (r. 1195–1205), also Baldwin IX of Flanders and Baldwin I of the Latin Empire