Truth and Justice (Estonian: Tõde ja õigus) I-V, written in 1926–1933, is a pentalogy by Anton Hansen Tammsaare, considered to be his most famous work, and one of the foundational works in Estonian literature.

Tammsaare's social epic captured the evolution of Estonia from tsarist province to independent state. It was based partly on the author's own life and centered on the contrast between the urban middle class and hard-working peasantry. The protagonist, Indrek Paas, moves from a farm to a city, witnesses uprisings and upheavals, tries to find peace in marriage and the middle and upper class life-style, but returns disappointed to his roots for a new start.

The book series can be seen as a thorough overview of developments of Estonian society from about 1870 to about 1930; it presents an epic panorama of both the rural and urban societies of that era. Tammsaare's primary conception was that under the then-applicable conditions, reaching a harmony of both truth and justice is impossible, and thus, while many characters will seek it, none will reach this destination.