- March 1 – Captain Ron Lanzo takes command of the Fairfax County Police Department's Reston District Station.
- March 16 – In what are believed to be unrelated incidents, the body of 22-year-old William Adolfo Rivas Leiva is discovered in a wooded area near Folly Lick Stream off the 1500 block of Hiddenbrook Drive in Herndon and the body of 19-year-old Milton Adonay Leon Angel is found in a creek behind an apartment building in the 4300 block of Ivymount Court in Annandale. Both men are found with upper body trauma consistent with homicide.
- March 19 – 56-year-old Paul W. Church dies in a fire at 5631 Southampton Drive in Springfield.
- March 26 – 64-year-old Santos Rafael Zelaya is shot and mortally wounded during a home invasion robbery at his home at 6103 N Kings Highway in the Huntington section of Alexandria when he confronts the three robbers with a machete. Zelaya is airlifted to a local hospital, where he dies.
- March 29 – 19-year-old Dilbar Noory unintentionally kills herself when she loses control of her 2004 Honda Accord, striking two other vehicles on Lee Chapel Road in Burke.
- Goff, Karen. "FCPD's Reston Station Has New Leadership." Reston Now. Local News Now LLC, 18 Mar. 2015. Web. 18 May 2016.
- Goff, Karen. "'Back to Basics' for Police in Reston, Says New Leader." Reston Now. Local News Now LLC, 27 Mar. 2015. Web. 18 May 2016.
- WTOP Staff. "Bodies Found in Wooded Areas Are Fairfax Co.'s First Homicides This Year." WTOP. WTOP, 18 Mar. 2015. Web. 17 Feb. 2016.
- Fairfax County Emergency Information. "Fatal West Springfield House Fire."Fairfax County Fire and Rescue Department News. Fairfax County Fire and Rescue Department, 19 Mar. 2015. Web. 17 June 2016.
- Fairfax County Emergency Information. "Update: West Springfield Fire Fatality Identified." Fairfax County Fire and Rescue Department News. Fairfax County Fire and Rescue Department, 20 Mar. 2015. Web. 17 June 2016.
- Jouvenal, Justin. "Two Charged with Murder in Killing of 64-year-old Alexandria Man." Washington Post. The Washington Post, 19 May 2015. Web. 18 Feb. 2016.
- FCPD Public Affairs Bureau. "UPDATE: Two Charged in March Huntington Area Homicide." Fairfax County Police Department News. Fairfax County Police Department, 19 May 2015. Web. 18 Feb. 2016.
- FCPD Public Affairs Bureau. "Fatal Crash in the Burke Area." Fairfax County Police Department News. Fairfax County Police Department, 30 Mar. 2015. Web. 06 June 2016.
- Reed, Sharon. "Police Seek Help in Investigating Fatal Crash in Burke." Burke, VA Patch. Patch.com, 30 Mar. 2015. Web. 06 June 2016.
|Fairfax County by Year: 2015|
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