On June 28, 2018, a mass shooting occurred at the offices of The Capital, a newspaper serving Annapolis, Maryland, United States. The gunman, Jarrod Ramos, killed five employees with a shotgun and injured two others who were trying to escape. Ramos was arrested shortly thereafter. He pleaded guilty but not criminally responsible to 23 charges; in July 2021, a jury found him criminally responsible. It is the deadliest workplace shooting in Maryland history.

The Capital had published an article in 2011 about Ramos being put on probation for harassing an acquaintance from high school through social media and email. Ramos, angered by the article, brought a defamation lawsuit against the newspaper but a judge later dismissed the suit. Ramos is alleged to have sent enraged letters and messages to The Capital threatening to attack its newsroom and staff, but no legal action was taken after the threats were received.

Capital Gazette Communications, owned by Tribune Publishing through its subsidiary the Baltimore Sun Media Group, publishes the daily newspapers The Capital and the Maryland Gazette and the weekly Crofton-West County Gazette. At the time of the shooting, its offices were located at 888 Bestgate Road in Parole, an unincorporated area of Anne Arundel County just outside Annapolis.

Sometime after 2 p.m. (EDT) on June 28, 2018, Jarrod Ramos arrived at The Capital's offices on Bestgate Road. He barricaded the rear exit of the office with a Barracuda Intruder Defense system device to prevent people from escaping, and another exit had another such device near it, but not deployed, and then he entered the building with a 12-gauge Mossberg 500 pump-action shotgun and a backpack laden with smoke bombs, flashbang devices, and grenades. Police later said that the gun had been purchased legally in the previous 18 months.

Around 2:30 p.m., Ramos "shot through the glass door to the office and opened fire on multiple employees", according to Phil Davis, a courts and crime reporter for the Capital who took refuge as the shooting began. Davis later described hearing the gunman reload.

Wendi Winters, a reporter, charged the gunman with a trash can and recycling bin, screaming at him, distracting him long enough for survivors to escape or take refuge between filing cabinets. Ramos then shot her.

The Anne Arundel County Police Department received reports of the shooting around 2:34 pm; officers reportedly arrived within one minute of their dispatch. The police discovered Ramos underneath a desk in the office, and surveillance within the office documented the incident and helped identify him as the perpetrator. Davis described the newspapers' offices as a "war zone" after the shooting.

Several injured victims were sent to Anne Arundel Medical Center for treatment. County police evacuated 170 people from the building to a reunification center set up at the nearby Westfield Annapolis shopping center. Survivors were later interviewed by the criminal investigations unit of the Anne Arundel County Police Department.