Robert Herman Orlando Corbin (born 15 February 1948)[1] is a Guyanese politician who was the Leader of the Opposition People's National Congress (PNC) between 2002 and 2012.

Born in Linden, Guyana, Corbin worked for the Youth Ministry of the Presbyterian Church before being educated in social work and law at the University of Guyana and the Hugh Wooding Law School.

[2] He worked as a social worker from 1966 to 1977 and during this time joined the PNC youth arm, the Young Socialist Movement before taking up a seat on the party's Central Executive Committee.

[2] Corbin, who was first elected to the National Assembly of Guyana in 1973, became one of the leading lights in the PNC, serving the party as Senior Vice Chairman and General Secretary as well as holding a number of government ministries, including the office of Deputy Prime Minister from 1985 to 1992.

[2] Elected PNC chairman in 2000, in December 2002 became party leader following the death of Desmond Hoyte.