Ms. Sanger, a public health nurse who opened the first birth control clinic in the United States in Brooklyn in 1916, has long been lauded as a feminist icon and reproductive-rights pioneer.

But her legacy also includes supporting eugenics, a discredited belief in improving the human race through selective breeding, often targeted at poor people, those with disabilities, immigrants and people of color.

“The removal of Margaret Sanger’s name from our building is both a necessary and overdue step to reckon with our legacy and acknowledge Planned Parenthood’s contributions to historical reproductive harm within communities of color,” Karen Seltzer, the chair of the New York affiliate’s board, said in a statement.