Lucas Barrett (14 November 1837 – 19 December 1862) was an English naturalist and geologist. He was the director of the Jamaican Geological Survey from 1859 to 1862. He was a young member of the Geological Society and became England's Government Geological Inspector to the West Indies. The marriage was recorded in the Cambridge section of the Bury and Norwich Post on March 15, 1859.

In 1853, he went to Ebersdorf, near Lobenstein, Vogtland, Germany to study botany and chemistry for a year.

Geology career

On May 2, 1855, at the age of 18, Barrett became a member of the Geological Society.

In 1855, he accompanied Robert MacAndrew on a dredging excursion from the Shetland Islands to Norway, Finland, and beyond the Arctic Circle. He subsequently made other cruises, to Greenland and to the coast of Spain. These expeditions laid the foundations of an extensive knowledge of the distribution of marine life.

In 1962, on the centennial of his death, a plaque monument was dedicated to Barrett.