Luitgarde of Vermandois

{{Short description|10th-century French noblewoman}}

{{ infobox nobility

| name = Luitgarde of Vermandois

| image =

| caption =

| noble family = Herbertian dynasty

| father = Herbert II, Count of Vermandois

| mother = Adele of France

| spouse = William I of Normandy
Theobald I of Blois

| birth_date = {{circa|914}}

| birth_place =

| death_date = {{death date|978|2|9|df=y}}

| death_place =

}}

Luitgarde of Vermandois ({{circa|914}} – 9 February 978) was a noblewoman from the Herbertian dynasty who lived in West Francia. She was a countess consort of Rouen and Normandy by her first marriage, and a countess consort of Blois and Chartres by her second. She was a daughter of Herbert II of Vermandois, and Adele, daughter of Robert I of France.{{sfn|Fanning|Bachrach|2011|p=21 n.77}} She first married William I of Normandy before 940.{{sfn|McKitterick|1999|p=361}} As a widow, following his death in 942, she married Theobald I of Blois in 943 or 944.{{sfn|McKitterick|1999|p=361}}

She had at least three children from her second marriage:

• Hugh, Archbishop of Bourges (d. 985)
• Odo (d. 996), count of Blois{{sfn|McKitterick|1999|p=361}}
• Emma (d. 1003), married William IV of Aquitaine{{sfn|McKitterick|1999|p=361}}