Cincinnatus Fabian D'Abreo (24 September 1862 – 25 January 1929) was a administrator and politician based in Karachi, British India.

He was educated at St Patrick's High School, Karachi but had to discontinue his studies at the age of 16 and earn a living due to the unfortunate death of his father.

[citation needed] In 1897, he returned to Karachi, where he occupied various posts such as assistant collector of customs, and shipping master.

He was held in high esteem by the people of Karachi, who named him among the 12 leading citizens of Sindh.

In 1908, this was developed into Karachi's first planned township named Cincinnatus Town, which today forms part of Garden East.