Delong is either a surname of French origin or a masculine given name of Chinese origin. DeLong and De Long are variants of the surname of French origin. Notable people with the names include:
Surname
- Alana DeLong, Canadian politician
- Allison DeLong (1940–2014), Canadian politician
- Candice DeLong (born 1950), American criminologist
- Charles E. DeLong (1832-1876), American diplomat
- Delmar DeLong (1931–1999), American politician
- Elizabeth DeLong, American bio-statistician
- Gary DeLong, American soccer player
- George B. De Long (?–1924), American real estate businessman assassinated in Albania
- George W. De Long (1844–1881), American naval officer and arctic explorer
- J. Bradford DeLong (born 1960), American economist
- Jesse Delong (1805–1868), Canadian politician
- Joe DeLong (born 1972), American politician
- Keith DeLong (born 1967), American football player
- Mahlon DeLong, American neurologist
- Michael P. DeLong (1945–2018), American Marine general
- Phillip C. DeLong (1919–2006), American Marine officer
- Richard DeLong, American singer
- Robert DeLong, American musician and music producer
- Russell V. DeLong (1901–1981), American minister and college president
- Sidney Randolph DeLong (1875–1914), American politician
- Solomon DeLong (1849–1925), Pennsylvania Dutch writer and journalist
- Sophie Delong (born 1957), French politician
- Steve DeLong (1943–2010), American football player
Given name
- Ding Delong (1904–1996), Chinese military officer
- Jia Delong (born 1985), Chinese baseball player
- Xu Delong (1952–2018), Chinese materials scientist
Other uses
- Delong, Indiana
- DeLong, Pleasants County, West Virginia
- DeLong Star Ruby
- USS DeLong
- Delong Steel, Chinese company
Name listThis page or section lists people that share the same given name or the same family name. If an internal link led you here, you may wish to change that link to point directly to the intended article. Categories: