Bonduca is a Jacobean tragi-comedy in the Beaumont and Fletcher canon, generally judged by scholars to be the work of John Fletcher alone. It was acted by the King's Men c. 1613, and published in 1647 in the first Beaumont and Fletcher folio.

The play is a dramatisation of the story of Boudica, the British Celtic queen who led a revolt against the Romans in 60–61 AD. Critics, however, have classified Bonduca as a "historical romance," rather than a history play comparable to those written by Shakespeare; historical accuracy was not Fletcher's primary concern. The play constantly shifts between comedy and tragedy.

The principal hero is not Bonduca herself, but rather Caratach (Caratacus), who is anachronistically depicted as her general, despite having been exiled from Britain almost a decade prior. Nennius, the legendary British opponent of Julius Caesar, is also included. However, most of the action takes place from the Roman point of view, centring on the Roman officers Junius and Petillius, who fall in love with Bonduca's two daughters. Petillius is a fictionalised version of Quintus Petillius Cerialis.

Bonduca, the queen of the Iceni, gloats over the defeats suffered by the Romans at the hands of her forces. She predicts that the Romans will soon be crushed. Bonduca's confidence is challenged by her general Caratach, who tells her that the Romans are not easily crushed and that the war will be very different from the tribal conflicts they are familiar with. It will be either total victory or utter defeat. Bonduca accepts Caratach's words of caution.

In the Roman camp, one of the officers, Junius, is depressed because he is in love. His friend Petillius tries to cheer him up, but to no avail. Junius reveals that his beloved is Bonduca's younger daughter. Soldiers led by corporal Judas enter, complaining that they are starving. Petillius and Junius tell them to remember their duties. The commander Suetonius is informed of the restive state of the troops. He tells his officers that he intends to provoke a decisive battle. An officer is sent to contact Poenius Postumus, another Roman commander, to join his army with Suetonius' force.

In Poenius's camp the troops are keen to join their comrades, but the haughty Poenius refuses to accept orders from Suetonius, considering battle against the much larger Briton force to be suicidal. He refuses to send the troops. Back in Suetonius' camp Petillius and fellow officers make fun of the love-stuck Junius. Petillius bets another officer, Demetrius, that Poenius will refuse to join them.

In Bonduca's camp Judas and some Roman soldiers have been captured while foraging for food. The Britons ridicule the half-starved Romans. Bonduca's vengeful daughters are keen to hang the captured men, but Caratach intervenes and orders them to be well fed and sent back to the Roman camp. While plying them with food and drink he extracts information from them. Judas reveals Junius' love for Bonduca's younger daughter. She decides she will write a fake love letter to him to capture him. She gives it to Judas, who returns with the others to the Roman camp, drunk.

In the British camp Bonduca makes an impassioned appeal to the thunder god Taranis, while the Druids make sacrifices and read omens. The daughters also pray for victory. Caratach gives a rousing speech to the troops. In the Roman camp Junius reads the fake love-letter, in which Bonduca's daughter tells him that he has won her love. If he meets her, she will allow herself and her family to be captured, as long as they will be well treated. Junius and his friends decide to trust the daughter's plans. Meanwhile, Suetonius gives his own speech to his troops.