Indigenous peoples native to South America.

The South Indian Bank Limited is a major private-sector bank headquartered at Thrissur in Kerala, India.

South Indian cuisine, also known as Dravidian cuisine, includes the cuisines of the five southern states of India—Tamil Nadu, Andhra Pradesh, Karnataka, Kerala and Telangana—and the union territories of Lakshadweep, and Pondicherry.

South Indian International Movie Awards, also known as the SIIMA Awards, rewards the artistic and technical achievements of the South Indian film industry.

South Indian culture refers to the cultural region typically covering the South Indian states of Tamil Nadu, Karnataka, Kerala, Andhra Pradesh, and Telangana.