James Neville Mason (15 May 1909 – 27 July 1984) was a three-time Academy Award-nominated English actor who attained stardom in both British and American films.

James N. Mason (born 1952) is an American National Socialist.

When he was 14 years old he began communicating with George Lincoln Rockwell's American Nazi Party and became a youth member until his 18th birthday when he was sworn into the renamed National Socialist White People's Party. In the 1970s he was involved with the National Socialist Liberation Front. He later went on to form the Universal Order, a group inspired by Charles Manson, leader of the mass-murder cult "The Family". Not only did Manson suggest the name, but he also designed the logo used by the group, a swastika superimposed over the scales of justice.

He edited, wrote, and published a newsletter titled SIEGE throughout the early to mid 1980s. Its contents were edited and published by Micheal Moynihan as Siege: The Collected Writings of James Mason. He advocated leaderless resistance, calling for autonomous action by individuals rather than an authoritarian hierarchical organization.

James Mason (November 19, 1849 - January 12, 1905) was a famous chess player and writer. He was born in Kilkenny in Ireland. His original name is unknown: he was adopted as a child and only took the name James Mason when he and his family moved to the United States of America in 1861. There he learnt chess and eventually secured a job at the New York Herald.

Mason made his first mark on the chess scene in 1876, when he won the Fourth American Congress in Philadelphia, the New York Clipper tournament, and defeated Henry Bird in a match by the comfortable margin of 13-6. In 1878 he settled in England. His best tournament results were third at the very strong Vienna 1882 tournament, third at Nuremberg 1883 and equal second at Hamburg 1885. At the strong Hastings 1895 tournament he finished joint twelfth with 9.5/21.

Mason wrote several books on chess, the most popular being The Principles of Chess in Theory and Practice (1894), The Art of Chess (1895), Chess Openings (1897), and Social Chess (1900).

The opening 1.d4 d5 2.Bf4 (in algebraic chess notation) is sometimes called the Mason Variation in his honour; he played it several times from the 1880s. The variation of the King's Gambit 1.e4 e5 2.f4 exf4 3.Nc3 (allowing 3...Qh4+) is sometimes called the Mason Gambit, though Mason lost the only game he played with it (against Samuel Rosenthal at Paris 1878); it is also known as the Keres Gambit. The 1 e4 e5 2 Nf3 Nf6 3 Nxe5 d6 4 Nf3 Nxe4 5 d4 d5 6 Bd3 Be7 7 0-0 0-0 variation of the Petroff Defence is also named after him.

He died in Rochford, Essex, England.

James Mason (born June 19, 1947) is a retired field hockey player from Australia, who won the silver medal with the Men's National Team at the 1968 Summer Olympics in Mexico City.

James Mason or "Jimmy" Mason (August 26, 1941 - June 22, 1991) was a conductor of classical music.

He is an award winning classical music conductor, with such awards as the Princess Grace Award, awarded at the Festival of the Arts, Monaco.

He is a graduate of Leland Stanford University.

Great English actor of British and American films. Born in Yorkshire, attended Marlborough and Cambridge, where he discovered acting on a lark and abandoned a planned career as an architect. Following work in stock companies, he joined the Old Vic under the guidance of Sir Tyrone Guthrie and of Alexander Korda, who gave Mason at least one small film role in 1933, but fired him a few days into shooting. Mason remained in the theatre becoming a prominent stage actor, meanwhile getting first small, then rapidly larger roles in "quota quickies", minor films made to accommodate laws mandating a certain percentage of films shown in Britain to be British-made. Mason's talent for playing protagonists of a decidedly hard-bitten or melancholy stripe brought him from these minor films to a position as one of Britain's major film stars of the Forties. When, late in that decade, he came to America, he played somewhat more glamorous or heroic roles than he had been accustomed to in Britain, but he remained a dynamic and intelligent force on the screen. His tendency to take any job offered led him to have many unworthy credits on his resume, but throughout his career he remained a respected and powerful figure in the industry. His mellifluous voice and an uncanny ability to suggest rampant emotion beneath a face of absolute calm made him a fascinating performer to watch. He died of a heart attack in 1984 at his home in Switzerland.