Margaret of Flanders, Duchess of Brabant

{{short description|13th-century Flemish noblewoman}}

{{distinguish|Margaret of Flanders, Countess of Guelders}}

{{More citations needed|date=July 2022}}

{{ infobox noble

| name = Margaret of Flanders

| image = Jan Brabantský a Markéta z Dampierre.jpg

| caption = John I, Duke of Brabant and his wife Margaret of Flanders

| noble family = House of Dampierre

| father = Guy of Dampierre

| mother = Matilda of Béthune

| spouse = John I, Duke of Brabant

| birth_date = {{circa}} 1251

| birth_place =

| death_date = {{death date|1285|7|3|df=y}}

| death_place =

}}

Margaret of Flanders (died 3 July 1285) was a Duchess consort of Brabant. She was the daughter of Guy of Dampierre and his first wife Matilda of Béthune.{{CN|date=May 2024}}

Margaret married John I, Duke of Brabant in 1273.{{sfn|Verbruggen|2002|p=8}} She was the mother of:

1. Godfrey (1273/74 – aft. 13 September 1283).
2. John II of Brabant (1275–1312).
3. Margaret of Brabant (4 October 1276 – 14 December 1311, Genoa), married 9 June 1292 to Henry VII, Holy Roman Emperor.
4. Marie (d. after 2 December 1338), married to Count Amadeus V of Savoy.