In 1975, she was elected President of PEN American Center.
As President of PEN American Center in 1975, Muriel Rukeyser undertook an influential role within the literary and advocacy spheres. Her election underscored her status within the literary community and was a testament to her views on free expression and the rights of writers worldwide. Under her leadership, PEN extended its reach and influence, championing writers' rights and enhancing dialogue around issues of censorship and freedom of speech.