| Election Name: | 1921 Persian legislative election |
| Country: | Iran |
| Flag Image: | State flag of Iran (1907-1933).svg |
| Type: | legislative |
| Election Date: | 1921 |
| Ongoing: | no |
| Previous Election: | 1914 Persian legislative election |
| Previous Year: | 1914 |
| Next Election: | 1923 Persian legislative election |
| Next Year: | 1923 |
| Seats For Election: | All 138 seats to the National Consultative Assembly |
| Party1: | Reformers' Party |
| Leader1: | Hassan Modarres |
| Leaders Seat1: | Tehran |
| Party2: | Socialist Party |
| Leader2: | Soleiman Eskandari |
| Leaders Seat2: | Tehran |
| Prime Minister | |
| Before Election: | Zia'eddin Tabatabaee |
| After Election: | Ahmad Qavam |
The Persian legislative election of 1921 was the first election held after the 1921 Persian coup d'état. Reformers' Party, led by Hassan Modarres was the majority party while Socialist Party was the main opposition.[1]