Alice Costandina "Dina" Titus (born May 23, 1950) is the former U.S. Representative for Nevada's 3rd congressional district, serving from 2009 until 2011. She is a member of the Democratic Party. She previously served in the Nevada Senate and was that body's minority leader from 1993 to 2009.

Prior to her election to Congress, Titus was an active professor of political science at the University of Nevada, Las Vegas (UNLV). She taught American and Nevada government at UNLV for 30 years.

Titus was born in Thomasville, Georgia. She grew up in the rural Georgia town of Tifton, which she describes as very similar to areas of rural Nevada, but with cotton and peanuts as key agricultural exports instead of the alfalfa, vegetable, and fruit crops of the Silver State. Titus's first exposure to politics came at an early age, when her father, Joe Titus, ran for the Tifton City Council. Her uncle, Theo Titus, served in the Georgia House of Representatives for many years.

Dina Titus's high school years included cheerleading and dancing lessons, in addition to her studies. She attended a summer program at The College of William & Mary and was admitted full time for the fall - without a high school diploma. There, she studied political science.

Titus (Latin: Titus Flavius Caesar Vespasianus Augustus; 30 December 39 – 13 September 81), was Roman Emperor from 79 to 81. A member of the Flavian dynasty, Titus succeeded his father Vespasian upon his death, thus becoming the first Roman Emperor to come to the throne after his own father.

Prior to becoming Emperor, Titus gained renown as a military commander, serving under his father in Judaea during the First Jewish-Roman War. The campaign came to a brief halt with the death of emperor Nero in 68, launching Vespasian's bid for the imperial power during the Year of the Four Emperors. When Vespasian was declared Emperor on 1 July 69, Titus was left in charge of ending the Jewish rebellion. In 70, he successfully laid siege to and destroyed the city and Temple of Jerusalem. For this achievement Titus was awarded a triumph; the Arch of Titus commemorates his victory to this day.

Under the rule of his father, Titus gained notoriety in Rome serving as prefect of the Praetorian Guard, and for carrying on a controversial relationship with the Jewish queen Berenice. Despite concerns over his character, Titus ruled to great acclaim following the death of Vespasian in 79, and was considered a good emperor by Suetonius and other contemporary historians. As emperor, he is best known for completing the Colosseum and for his generosity in relieving the suffering caused by two disasters, the Mount Vesuvius eruption of 79 and a fire in Rome in 80. After barely two years in office, Titus died of a fever on 13 September 81. He was deified by the Roman Senate and succeeded by his younger brother Domitian.