Dennis P. Gallagher is a former New York City Council member who represented the 30th District in Queens, including the neighborhoods of Middle Village, Glendale, Ridgewood, Richmond Hill, Woodhaven, and Forest Hills. Gallagher was one of only three Republicans in the 51-member city council, and the only one not representing a Staten Island district.
Dennis Gallagher held a variety of positions in the public sector before being elected to office. These positions included Investigator for the State of New York Crime Victims Board, Regional Coordinator for the New York State Assembly, Executive Assistant (secretary) to State Senator Serphin R. Maltese, and Chief of Staff to his predecessor, Councilman Thomas V. Ognibene.
Gallagher was first elected to the council in 2001. He won re-election in 2005.
He resigned from office and pleaded guilty in 2008 to two misdemeanors, admitting that he sexually abused a woman in his district office in Middle Village, Queens, last summer while he was intoxicated.