Urmila (Sanskrit: ऊर्मिला, romanized: Urmilā, lit. 'enchantress'), is a Hindu goddess and the princess of Videha in the Hindu epic Ramayana. She is considered to be an avatāra of Nagalakshmi, the serpent goddess. Urmila was married to Lakshmana and is known for her dedication towards her husband, for her sacrifice.

Urmila was born as the daughter of King Janaka of Mithila and Queen Sunayana. Sita, the female protagonist of the epic, is her elder sister. She was married to Lakshmana, after her sister's svayamvara. According to a legend, Urmila slept continuously for fourteen years, so that her husband could protect Rama and Sita during the exile. She is notable for this unparalleled sacrifice, which is called Urmila Nidra. Urmila is worshipped in Hinduism, at various places in India, alongside her husband.

The name Urmila is of Sanskrit origin, and could be divided into Ur meaning waves, and mila, meaning to join. Thus, her name means 'waves of passion that unite a couple'. Her name also means 'humble' or 'enchantress'.

Urmila was born as the daughter of King Janaka of Mithila and Queen Sunayana. Urmila is considered as the incarnation of Nagalakshmi, Shesha's consort. In the Garga Samhita, Nagalakshmi is considered to be the personification of the divine ocean called the Kshira Sagara and is called as Kshira.

Urmila was born on Jaya ekadashi, after her elder sister Sita, was adopted by her parents. Mandavi and Shrutakirti are her cousins, who were born to her father's younger brother, Kushadhvaja and his wife Chandrabhaga. According to legends, she was a scholar and an artist .

After Rama won the svayamvara of Sita, their marriage was fixed. King Dasharatha arrived in Mithila for his son's wedding and noticed that Lakshmana had feelings for Urmila , but according to tradition, Bharata and Mandavi were to marry first. King Dasharatha then arranged for Bharata to marry Mandavi and Shatrughna to marry Shrutakirti, allowing Lakshmana to marry Urmila. Ultimately, all four sisters married the four brothers, strengthening the alliance between the two kingdoms. The wedding ceremony was conducted under the guidance of Shatananda. During the homeward journey to Ayodhya, another avatar of Vishnu, Parashurama, challenged Rama to combat, on the condition that he was able to string the bow of Vishnu, Sharanga. When Rama obliged him with success, Parashurama acknowledged the former to be a form of Vishnu and departed to perform penance at the mountain Mahendra. The wedding entourage then reached Ayodhya, entering the city amid great fanfare.

According to Vishwamitra, Urmila and Lakshmana equals each other in "grace and heritage". Urmila and Lakshmana had two sons named Angada and Chandraketu. Urmila is described as being as dedicated to Sita as Lakshmana was to Rama.

Some time after the wedding, Kaikeyi compelled Dasharatha to make Bharata king, prompted by the coaxing of her maid Manthara, and forced Rama to leave Ayodhya and spend a period of exile. Sita and Lakshmana willingly renounced the comforts of the palace and joined Rama in exile. Urmila was ready to accompany her husband, but he asked her to stay back in Ayodhya, so that she could take care of his aging parents and he could serve his brother and his wife.