United States one-hundred-dollar bill

The United States one-hundred-dollar bill (US$100) is a denomination of United States currency. The first United States Note with this value was issued in 1862, and the Federal Reserve Note version was first produced in 1914. Inventor and U.S. Founding Father Benjamin Franklin has been featured on the obverse of the bill since 1914, which now also contains stylized images of the Declaration of Independence, a quill pen, the Syng inkwell, and the Liberty Bell. The reverse depicts Independence Hall in Philadelphia, Pennsylvania, which it has featured since 1928.

The $100 bill is the largest denomination that has been printed and circulated since July 13, 1969, when the larger denominations of $500, $1,000, $5,000, and $10,000 were retired. As of May 2025, the average life of a $100 bill in circulation is 24.0 years before it is replaced due to wear.

The bills are also informally referred to as "Benjamins", in reference to the use of Benjamin Franklin's portrait by the French painter Joseph Duplessis on the denomination, as "C-Notes" or "Century Notes", based on the Roman numeral for 100, or as "blue faces", based on the blue security features in the current design. The bill is one of two denominations printed today that does not feature a president of the United States, the other being the $10 bill, featuring Alexander Hamilton. The Series 2009 $100 bill redesign was unveiled on April 21, 2010, and was issued to the public on October 8, 2013. The new bill costs 12.5 cents to produce and has a blue ribbon woven into the center of the currency with "100" and Liberty Bells, alternating, that appear when the bill is tilted.