Bill may refer to:

This section includes only individuals whose last name is Bill, or whose only generally-known name is Bill.

Bill is a common nickname for William. See William (name) for more information on the history of the name William. People known as Bill include:

Pola Illéry, born Paula Iliescu (October 15, 1908 – February 15, 2012) was a Romanian silent and early talking film actress.

She was born in Corabia, Romania, to a middle-class Jewish family. Illéry appeared in a few French films made during the 1920s and 1930s, most notably René Clair's Under the Roofs of Paris (1930) and in Parada Paramount, the Romanian-language version of Paramount on Parade (1930) made in Paris by Paramount Pictures. She is believed to have made her last film appearance in 1940 in Tobie est un ange.

With the rise of Nazism Illery came to America to evade religious persecution. During World War II she worked as a Red Cross volunteer nurse. In 1946 she became an Naturalized Citizen and the following year she married Daniel Alpert, a marriage that produced 4 children and lasted for 52 years until his death in 1999. Pola moved to Scranton, Pennsylvania in 1954 and lived out her days raising her family, being a housewife, and was active in her synagogue. She died there on February 15, 2012 from advanced age. She is interred at Washburn Street Cemetery in Scranton, Pennsylvania.

Albert Préjean (27 October 1894, Paris – 1 November 1979, Paris) was a French actor, primarily in film. He served in World War I, and was decorated with the Croix de Guerre and the Legion d'honneur. With Lysiane Rey, he was the father of Patrick Préjean, and grandfather of Laura Préjean.

William Henry "Bill" Gates III (born October 28, 1955 in Seattle, Washington) is an American business magnate, computer programmer and philanthropist. Gates is the former chief executive officer (CEO) and current chairman of Microsoft, the world’s largest personal-computer software company he co-founded with Paul Allen. He is consistently ranked among the world's wealthiest people and was the wealthiest overall from 1995 to 2009, excluding 2008, when he was ranked third; in 2011 he was the wealthiest American and the second wealthiest person. During his career at Microsoft, Gates held the positions of CEO and chief software architect, and remains the largest individual shareholder, with 6.4 percent of the common stock. He has also authored or co-authored several books.

Gates is one of the best-known entrepreneurs of the personal computer revolution. Gates has been criticized for his business tactics, which have been considered anti-competitive, an opinion which has in some cases been upheld by the courts. In the later stages of his career, Gates has pursued a number of philanthropic endeavors, donating large amounts of money to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation, established in 2000.