William R. McDermott (born August 18, 1961)[1] is an American businessman and CEO of ServiceNow.

[2][6] McDermott, along with Joanne Gordon, wrote a memoir, Winners Dream: A Journey from Corner Store to Corner Office,[7] and was awarded a gold medal for business memoir of the year by the Axiom Business Book Awards.

[3][4] From 2001 to 2002, he was executive vice president of worldwide sales and operations at Siebel Systems.

[2][15] In 2016 McDermott became the best-paid executive leading the companies that form the German stock index DAX by earning a direct remuneration of €11.6 million.

[18] At the end of October 2019 after McDermott stepped down from SAP, ServiceNow announced his appointment as CEO.

He underwent "11 or 12 surgeries by the time it was all done", but ultimately the accident cost him his left eye.