The name Dimas is of Greek origin and can be traced back to the early Christian era. It is derived from the Greek word "demas," which means "to subdue" or "to tame." The name is closely associated with the biblical figure Demas, who was mentioned in the New Testament as a companion of the Apostle Paul.

In the Epistle to the Colossians (4:14) and the Second Epistle to Timothy (4:10), Demas is mentioned as one of Paul's fellow workers in spreading the Gospel. However, according to the Second Epistle to Timothy, Demas later deserted Paul, having been attracted by the world and its pleasures. This biblical reference has contributed to the perception of Dimas as a name with a somewhat ambiguous connotation, representing both loyalty and potential for weakness or defection.

One of the earliest recorded bearers of the name Dimas was Saint Dimas (also known as the Good Thief or the Penitent Thief), who was crucified alongside Jesus Christ. According to the Gospel of Luke, Dimas acknowledged Jesus as the Messiah and was promised a place in Paradise. This biblical account has made Saint Dimas a revered figure in Christianity, particularly within the Eastern Orthodox tradition.

Throughout history, several notable figures have borne the name Dimas. One of the most famous was Dimas Theodosios Maskalvas (1765-1830), a Greek revolutionary and military leader who played a significant role in the Greek War of Independence against the Ottoman Empire. Another prominent figure was Dimas Dritsas (1851-1908), a Greek politician and diplomat who served as Prime Minister of Greece in 1897.

In the realm of literature, Dimas Kokas (1786-1857) was a prominent Greek poet and scholar who contributed to the revival of the Modern Greek language and literature. Dimas Galgut (1963-), a South African novelist and playwright, is a contemporary literary figure who has received critical acclaim for his works exploring themes of identity and socio-political issues.

Dimas Diachenko (1907-1982) was a Ukrainian-born Soviet military officer who fought in World War II and was awarded the prestigious title of Hero of the Soviet Union for his bravery and leadership on the battlefield.