Soejadi (3 January 1888 – 23 November 1953) was an Indonesian aristocrat and politician who served as the Regent of Sidoarjo, United States of Indonesia senator from East Java, and member of the Provisional People's Representative Council Soejadi was born on 3 January 1888 in the Surakarta Sunanate, which at that time was part of the Dutch East Indies.

After that, from 1912 until 1917, Soejadi became the Asisten Wedana (subdistrict head) in Panekan, Magelang.

Soejadi went back to study in Bestuurschool (Dutch school for civil servants) from 1918 until 1920.

All senators automatically became members of the Provisional People's Representative Council.

[4] Soejadi was married to Raden Ayu Adipati Aryo Soesilawati-Soejadi.