Daughter-in-law of Judah, her first two husbands (Er and Onan) died childless and at an early age. Judah prevented her marriage to any other man, but also refused to give her the third brother in marriage -- as was required under the law of the levir. After the death of Judah's wife, Tamar uses a ruse to get justice out of Judah, who then marries her himself. They become the parents of twin brothers, Perez and Zerah. Tamar is one of the four women Matthew's gospel names in the genealogy of Jesus.

The daughter-in-law of Judah (Genesis 38); the daughter of David (2 Samuel 13).

In the Bible Tamar - תָּמָר "Date Palm", Standard Hebrew 'Tamar, Tiberian Hebrew Tāmār was the daughter-in-law of Judah, to whose eldest son, Er, she was married . After her husband's death, she was married to Onan, his brother (8), and on his death, Judah promised to her that his third son, Shelah, would become her husband. This promise was not fulfilled, and Tamar disguised herself as a temple prostitute and offered herself to her father-in-law Judah.

In Georgian mythology, Tamar was a Georgian Sky Goddess who controlled the weather patterns. Tamar enslaved Dilis Varskvlavi, the Morning Star, who was master of winter; whenever he escaped, snow began to fall, but annually she captured him and brought summer back to the land.

Tamar is a fictional war novel for children by Mal Peet, published on October 3, 2005 by Walker Books Ltd. The plot follows a girl named Tamar and her cousin Johannes who follow clues as to the meaning of a box Tamar's grandfather left for her when he died after falling from a balcony. Tamar won the Carnegie Medal award in 2005.

Tamar (添馬) is a station on MTR's proposed North Island Link. If built it will be located at the former site of HMS Tamar on Hong Kong Island, Hong Kong. This station if built is part of MTR's North Island Line (NIL) proposal on Hong Kong Island which will see the Hong Kong Island Line be integrated with the Tseung Kwan O line.