Mustafa ibn Mahmud

{{Short description|Bey of Tunis}}

{{Infobox royalty

|title =

| name =Mustafa ibn Mahmud

| image =

| caption =

| succession =Bey of Tunis

| reign1 ={{nowrap|20 May 1835 – 10 October 1837}}

| predecessor1 =Al-Husayn II ibn Mahmud

| successor1 =Ahmad I ibn Mustafa

| spouse =

| issue =Ahmad I ibn Mustafa

| house =Husainides

| house-type =Dynasty

| father = Mahmud ibn Muhammad

| mother =

| birth_date =August 1787

| birth_place =Tunis, Beylik of Tunis

| death_date =10 October 1837

| death_place =La Goulette, Beylik of Tunis

| place of burial = Tourbet el Bey, Tunis, Tunisia

| religion =Islam

|}}

Mustafa I (1786–1837) ({{langx|ar|مصطفى الأول}}), commonly known as Mustapha Bey, was the ninth leader of the Husainid Dynasty and the ruler of Tunisia from 1835 until his death in 1837.

{{cite book|url=https://books.google.com/books?id=cslsCwAAQBAJ&pg=PA147|author=Abdul Azim Islahi|title=Economic Thinking of Arab Muslim Writers During the Nineteenth Century|publisher=Palgrave Macmillan|year=2015|pages=147|doi=10.1057/9781137553218|isbn=978-1-349-55924-4}}