Elizabeth Porter (1689-1752), was an English woman who is better known for her marriage to Samuel Johnson, which happened on July 9, 1735. She was nicknamed "Terry".

Porter had been previously married, and she had three children from her first marriage.

A socialite, she met Johnson while they were both working in the British city of Birmingham. Porter was one of the best known ladies around Birmingham's social scene of the time.

After marrying Johnson, Porter became known for her extravagancies. She was 20 years older than her husband, and did not want to be overshadowed by her husband's youth. Porter then began to dress and act like a woman much younger than her age, and she also began to hang around bars.

Porter was ridiculized by society for the way in which she behaved and dressed after her marriage to Johnson, a writer who is accredited with writing the world's first recognized dictionary. It can be said that she reached celebrity by becoming Johnson's wife; being under the public scope may have provided her with much pressure.

Troubled by the way in which British society saw her, Porter turned into drugs (opium) and alcohol. This led her to many health problems.

During 1752, year in which Johnson was working his way towards completing the dictionary, Elizabeth Porter passed away, at the age of 63.