Hollandsburg or Hollandsburgh is an unincorporated community in Union Township, Parke County, in the U.S. state of Indiana.

[2] A post office was established at Hollandsburg in 1853, and remained in operation until it was discontinued in 1902.

[4] Hollandsburg is the site of the 1977 St. Valentine's Day Massacre, in which four young men entered a trailer home and shot to death four brothers and wounded their mother.

[5] Roger Drollinger, a 24 year old habitual criminal, expected to go to prison the next day on a drug charge, and decided to commit a thrill killing while he still had the opportunity.

[5] Drollinger and his followers – Daniel Stonebraker, Michael Wright, and David Smith – were all found guilty of murder and sentenced to life in prison.