Mṛcchakatika (Sanskrit: मृच्छकटिकम्, romanized: Mṛcchakaṭikam), also spelled Mṛcchakaṭikā, Mrchchhakatika, Mricchakatika, or Mrichchhakatika (The Little Clay Cart) is a ten-act Sanskrit drama attributed to Śūdraka (Simuka), an ancient playwright who is possibly from the 5th century CE, and who is identified by the prologue as a Kshatriya king as well as a devotee of Shiva who lived for over 110 years. The play is set in the ancient city of Ujjayini during the reign of the King Pālaka, near the end of the Pradyota dynasty that made up the first quarter of the fifth century BCE. The central story is that of a noble but impoverished young Brahmin, Sanskrit: Cārudatta, who falls in love with a wealthy courtesan or nagarvadhu, Sanskrit: Vasantasenā. Despite their mutual affection, however, the couple's lives and love are threatened when a vulgar courtier, Samsthānaka, also known as Shakara, begins to aggressively pursue Vasantasenā.

Life with romance, comedy, intrigue and a political subplot detailing the overthrow of the city's despotic ruler by a shepherd, the play is notable among extant Sanskrit drama for its focus on a fictional scenario rather than on a classical tale or legend. Mṛcchakaṭika also departs from traditions enumerated in the Natya Shastra that specify that dramas should focus on the lives of the nobility and instead incorporates many peasant characters who speak a wide range of Prakrit dialects. The story is thought to be derived from an earlier work called Cārudatta in Poverty by the playwright Bhāsa, though that work survives only in fragments.

Of all the Sanskrit dramas, Mṛcchakaṭika remains one of the most widely celebrated and often-performed in the West. The work played a significant role in generating interest in Indian theatre among European audiences following several successful nineteenth century translations and stage productions, most notably Gérard de Nerval and Joseph Méry's highly romanticised French adaptation titled Le Chariot d'enfant that premiered in Paris in 1850, as well as a critically acclaimed "anarchist" interpretation by Victor Barrucand called Le Chariot de terre cuite that was produced by the Théâtre de l'Œuvre in 1895.

Unlike other classical plays in Sanskrit, the play does not borrow from epics or mythology. The characters of Śūdraka (Simuka) are drawn from the mundane world. It is peopled with gamblers, courtesans, thieves, and so on. The protagonist of the play, Cārudatta, does not belong to the noble class or royal lineage. Though Vasantasenā is a courtesan, her exemplary attitude and dignified behavior impress the audience. The nobility of the characters does not stem from their social conditioning but from their virtues and behaviour.

Cārudatta is a generous young brahmin who, through his charitable contributions to unlucky friends and the general public welfare, has severely impoverished himself and his family. Though deserted by most of his friends and embarrassed by deteriorating living conditions, he has maintained his reputation in Ujjayini as an honest and upright man with a rare gift of wisdom and many important men continue to seek his counsel.

Though happily married and the recent father of a young son, Rohasena, Cārudatta is enamored of Vasantasenā, a courtesan of great wealth and reputation. At a chance encounter at the temple of Kāma she returns his affection, though the matter is complicated when Vasantasenā finds herself pursued by Samsthānaka, a half-mad brother-in-law of King Pālaka, and his retinue. When the men threaten violence, Vasantasenā flees, seeking safety with Cārudatta. Their love blossoms following the clandestine meeting, and the courtesan entrusts her new lover with a casket of jewelry in an attempt to ensure a future meeting.

Her plan is thwarted, however, when a thief, Sarvilaka, enters Cārudatta’s home and steals the jewels in an elaborate scheme to buy the freedom of his lover, Madanikā, who is Vasantasenā’s slave and confidante. The courtesan recognizes the jewelry, but she accepts the payment anyway and frees Madanikā to marry. She then attempts to contact Cārudatta and inform him of the situation, but before she can make contact he panics and sends Vasantasenā a rare pearl necklace that had belonged to his wife, a gift in great excess of the value of the stolen jewelry. In recognition of this, Cārudatta's friend, Maitreya, cautions the Brahmin against further association, fearing that Vasantasenā is, at worst, scheming to take from Cārudatta the few possessions he still has and, at best, a good-intentioned bastion of bad luck and disaster.

Refusing to take this advice, Cārudatta makes Vasantasenā his mistress and she eventually meets his young son. During the encounter, the boy is distressed because he has recently enjoyed playing with a friend's toy cart of solid gold and no longer wants his own clay cart that his nurse has made for him. Taking pity on him, Vasantasenā fills his little clay cart with her own jewelry, heaping his humble toy with a mound of gold before departing to meet Cārudatta in a park outside the city for a day’s outing. There she enters a fine carriage, but soon discovers that she is in a gharry belonging to Samsthānaka, who remains enraged by her previous affront and is madly jealous of the love and favour she shows to Cārudatta. Unable to persuade his henchmen to kill her, Samsthānaka sends his retinue away and proceeds to strangle Vasantasenā and hide her body beneath a pile of leaves. Still seeking vengeance, he promptly accuses Cārudatta of the crime.