The Kate Mullany House at 350 Eighth Street in Troy, New York, was the home of Kate Mullany. A young Irish immigrant, Mullany formed America's first bona fide all-female union, the Troy Collar Laundry Union, in 1864. That same year, Mullany led a successful strike, winning higher wages and safer, improved working conditions for the majority-Irish female workers. She was the first woman to serve as an officer of a national union. Mullany was inducted into the National Women's Hall of Fame in 2000 and Labor's International Hall of Fame in 2016.

Designated a National Historic Landmark in 1998, the site was dedicated by former First Lady Hillary Rodham Clinton that July. It was listed as a National Historic Site by an Act of Congress in 2004 and is included on New York State's Women's Heritage Trail. The home is part of a three-story, six-apartment building that was built in 1869. It includes a historically restored exterior, third-floor Mullany apartment, stairwell, and exterior back stairway. The yard has been landscaped with period-appropriate planting. A memorial to trade union women pioneers is also planned.

Historic restoration will be completed in late 2019 through the sponsoring organization, the America Labor Studies Center (ALSC).