Sadhu, or sadhvi, is a religious ascetic, mendicant or any holy person in Hinduism, Buddhism, and Jainism. People with this name include:
- Sadhvi Kanakprabha, eighth head nun of Jain Shwetamber Terapanth religious order
- Niranjan Jyoti, also called Sadhvi Niranjan Jyoti, Indian Minister of State for Rural Development
- Pragya Singh Thakur, also called Sadhvi Pragya, member of the Lok Sabha
- Sadhvi Krishnapriya, Indian motivational speaker, social worker and devotional singer
- Sadhvi Siddhali Shree, Jain monk, TEDx speaker, and activist
- Sadhvi Prachi, Hindutva politician and member of the Vishwa Hindu Parishad
- Sadhvi Rithambara, founder-chairperson of Durga Vahini