Mariamman, often abbreviated to Amman, is a Hindu goddess of rain.
She is considered as a guardian deity (kaval deivam).
The word Mari has the Sangam Tamil origin meaning “Rain”, and the Dravidian root term Amman means “Mother”. She was worshipped by the ancient Tamils as the bringer of rain and thus also the bringer of prosperity, since the abundance of their crops was dependent largely upon adequate rainfall.
Mariamman has since been associated with Hindu goddesses like Parvati, Kali, Durga, Rukmini, Sita, Draupadi.