Bouloussou Soubramaniom Sastroulou (Bulusu Subrahmaṇya Śāstrulu; 1866 – 13 September 1941) was Diwan, Conseiller local and Judge Advocate during French colonial rule in Yanam in the early 20th century.

Soubramaniom Sastroulou was born in Yanam in 1866 and was raised by his maternal grandmother, Veerubhotla Mahalakshmamma (వీరుభొట్ల మహలక్ష్మమ్మ Vīrubhoţla Mahalakṣhmamma).

Manyam Mahalakshmamma, then Zamindarni quotes about him in her interview in 1902 with Vadivelu that was mentioned in his book,[3] ...During the time of her former manager, owing to mismanagement, the estate was encumbered with debt, but everything has been set right after the present manager (Sastrulu) joined the staff of the Zemindarni's establishment.

His prominence can be understood from the incident of his request to obtain authorization to elect 2 members of Administration of committee of Vishnu and Siva Temples, replacing late Counomreddy Kroustama and Marla-Pérousomayazoulou was accepted by Clement-Thomas, then Governor-General of French India on 21 September 1894.

Eldest son B. J. Sastry was a prominent engineer and was among one the earliest life members of the Indian Science Congress Association (ISCA).