William Bondy (April 9, 1870 – March 30, 1964) was a longtime federal judge of the United States District Court for the Southern District of New York.
Bondy spent his entire life as a resident of New York City. He attended Columbia University and earned a B.A. in 1890, an M.A. in 1891, and a Ph.D. in 1892. He received an LL.B. from Columbia Law School in 1893 and then worked as a lawyer in private practice in New York City from 1893 to 1923.
On February 28, 1923, President Warren G. Harding nominated Bondy to the Southern District bench to a seat vacated by Julius M. Mayer. Bondy was confirmed by the United States Senate on March 2, 1923, and received his commission the same day. He became chief judge in 1955, assuming senior status the following year, on May 1, 1956. He served in that capacity until his death, in New York, New York.