Deqen may refer to:
The DeQueen Formation, formerly known as the DeQueen Limestone Member is a Mesozoic geologic formation located in south western Arkansas and southeastern Oklahoma in the United States.
DeQuan Jones (born June 20, 1990) is an American professional basketball player who currently plays for the Lille Métropole of the French LNB Pro B.
DeQuincy is the northernmost city in Calcasieu Parish, Louisiana, United States. The population was 3,235 at the 2010 census.
Dequalinium is a quaternary ammonium cation commonly available as the dichloride salt. The bromide, iodide, acetate, and undecenoate salts are known as well.
DeQwan Young (born November 12, 1986) is an American football defensive back who is currently a free agent.
DeQuincy High School is a senior high school in DeQuincy, Louisiana. It is a part of Calcasieu Parish Public Schools.
DEQ can refer to
DeQuan Menzie (born January 11, 1990) is a former American football cornerback. He played college football at Alabama.
DeQuin Evans (born May 17, 1987) is an American professional Canadian football defensive lineman for the Montreal Alouettes of the Canadian Football League (CFL).