Lispenard Stewart Jr. (June 19, 1855  – October 15, 1927) was an American lawyer who served as New York State Senator.

He was the maternal grandson of William Christopher Rhinelander (1790–1878),[1][3][8] Lieutenant in Colonel Stevens' Regiment in the War of 1812.

He devoted most of his time to the administration of estates, charitable, philanthropic, and educational work.

[9] Stewart was the New York County representative to the Republican State Committee, serving as its treasurer.

He was a close friend of A. Lanfear Norrie, with whom he threw a 100-person dinner and evening of vaudeville before the two traveled to Mexico on vacation.

[19] He also owned a "cottage" called "White Lodge" on Bellevue Avenue in Newport, Rhode Island,[20] where he entertained regularly.

Elisha Dyer, Sen. Chauncey Depew, Mrs. Astor, Anthony Joseph Drexel, Jr., and Marion Graves Anthon Fish, among others.

His funeral was held at Grace Church and he was buried at Green-Wood Cemetery in Brooklyn.