B. Daniel Riley (February 16, 1946 – August 31, 2016) was an American politician who represented District 34A in the Maryland House of Delegates.

[1] Born in London, England, he was a Harford County social studies teacher from 1978 until 2006.

Riley attended Baltimore City College high school and graduated in 1964.

In his first term he was a member of the Commerce and Government Matters Committee and its transportation subcommittee.

Maryland League of Conservation Voters, which consists of all the major Maryland environmental organizations, gave Delegate Riley a 100% voting record, on environmental issues for the 2008 session.