The Punnainallur Mariamman Temple is a highly revered Hindu temple located near Thanjavur, Tamil Nadu, dedicated to Goddess Mariamman, the deity associated with rain, health, and protection. The temple holds great spiritual significance and is especially known for its belief in healing powers and blessings for devotees.

According to legend, the temple was established during the Maratha rule, when Queen Sujana Bai Saheb consecrated the idol after receiving divine instructions. Over the years, the temple has become an important pilgrimage site, attracting devotees from across Tamil Nadu who seek relief from illnesses and fulfillment of wishes.

The temple architecture reflects traditional South Indian style, with a serene atmosphere and strong devotional energy. Special poojas and rituals are conducted daily, while festivals like Aadi Thiruvizha draw large crowds, making the temple a vibrant spiritual destination near Thanjavur.