The 2021 Columbia University strike was a labor strike at Columbia University in New York City. The strike, which began on March 15, 2021, was between the Graduate Workers of Columbia–United Auto Workers Local 2110, a labor union representing student workers at the university. This union was formed in December 2016 and has had a contentious relationship with the university since its founding, with the university only agreeing to recognize the union in 2019. That same year, the union and university began to negotiate a labor contract, but disagreements between the two entities has prevented an agreement from being made. The main issue concerns union recognition, with the university recognizing only fully-funded doctoral students as union members, while the union also recognizes master's stu