Rustomjee Jivanji Ghorkhodu (1861 – 14 November 1924), commonly known as Parsee Rustomjee, and by various orthographic variations including Parsi Rustomji and affectionately referred to as Kakaji, was an Indian-South African philanthropist and businessman, well known for his close mentorship, guidance and financial sponsorship of Mahatma Gandhi during his time in South Africa from 1893 to 1914.