Rāhula (born c. 534 BC) was the only son of Siddhartha Gautama (Pāli Siddhattha Gotama), later known as the Buddha, and his wife Princess Yasodharā.

Accounts of his life differ in certain points. The following is that given in the Pāli Canon.

Prince Siddhartha was preparing himself to leave the palace. One account claims that when he received the news of his son's birth he replied Rāhu jāto, bandhanam jātam — "A rāhu is born, a fetter has arisen." Accordingly the child was named Rāhula, meaning "fetter", or "impediment", recognizing that the child could be a tie that bound him to his wife Yashodhara, a binding that may impede a search for enlightenment. Others, however, feel rāhu does not mean "fetter" in this sense. The second account, found in the Mūlasarvāstivāda vinaya, is that Rāhula received his name in accordance with an eclipse of the moon, caused by the snake Rahu.

Supporting the first account, in the Dhammapada, the pleasure and joy that a man receives in his wife and children is called a "soft fetter" that ties individuals to life and suffering, not just through eventual loss and separation of loved ones but more deeply and subtly may act as ties to cyclic existence (samsara).