St. Johanneslogen St. Nikolas til det Gyldne Anker is a Masonic lodge that was founded in Sarpsborg on December 5, 1995. The lodge has roots back to a Masonic fraternal association that was established in the city in 1904. It focuses on Freemasonry based on Christian values, and emphasizes brotherhood and friendship that lasts a lifetime. The lodge is open to all interested parties, and includes rituals and symbols in its meetings.
The lodge has an active international collaboration with other Masonic lodges and is also linked to the Sarpsborg Frimurer Sangforening, which is part of the community. Members have access to a meeting calendar, as well as articles and interviews that deal with Freemasonry. The lodge's premises are located at Albert Moeskausvei 27.