| Honorific Prefix: | Mirza |
| Esmail Momtaz od-Doleh | |
| Native Name: | میرزا اسماعیل خان ممتازالدوله |
| Birth Date: | 1880 |
| Birth Place: | Tehran |
| Death Date: | 1933 (aged 53) |
| Death Place: | Tehran |
| Other Names: | Esmail Momtaz |
| Occupation: |
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| Relatives: | Samad Khan Momtaz os-Saltaneh |
| Notable Works: | writer of the Persian Constitution of 1906 |
| Party: | Moderate Socialists Party[1] |
Esmail Momtaz od-Dowleh (Persian: اسماعیل ممتازالدوله) was a notable Iranian statesman of the early twentieth century. Born in tehran in 1880, he was one of the original Parliamentarians of the First Majles in 1906. He was also its fourth Speaker.
When the Parliament was bombarded by Mohammad Ali Shah, he was the speaker of majlis and escaped to Paris. In London he interviewed about the crisis which printed in European newspapers.
Momtaz od-Doleh was also Minister of Culture, Minister of Finance, Minister of Education and Minister of Justice. He was the actual writer of the Persian Constitution of 1906, being fluent in French and able to copy extracts lifted from the Belgian constitution.Momtaz died in 1933 at the age of 54 of coronary heart disease.