Tattvartha Sutra (also known as Tattvarth-adhigama-sutra or Moksha-shastra) is an ancient Jain text written by Acharya Umaswami (Umaswami), sometime between the 2nd- and 5th-century AD. It is one of the Jain scriptures written in the Sanskrit language. The term Tattvartha is composed of the Sanskrit words tattva which means “reality, truth” and artha which means “nature, meaning”, together meaning “nature of reality”.

The Tattvartha Sutra is regarded as one of the earliest, most authoritative texts in Jainism. It is accepted as authoritative in both its major sub-traditions – Digambara and Svetambara – as well as the minor sub-traditions. It is a philosophical text, and its importance in Jainism is comparable with that of the Brahma Sutras and Yoga Sutras of Patanjali in Hinduism. In an aphoristic sutra style of ancient Indian texts, it presents the complete Jainism philosophy in 350 sutras over 10 chapters. The text has attracted numerous commentaries, translations and interpretations since the 5th-century.