An influential bearer of the name was Martin Luther (1483-1546), the theologian who began the Protestant Reformation. The name was also borne by five popes (two of them more commonly known as Marinus). Other more recent bearers include the German philosopher Martin Heidegger (1889-1976), the American civil rights leader Martin Luther King Jr. (1929-1968), and the American filmmaker Martin Scorsese (1942-).
Famous bearers include the American actresses Jennifer Aniston (1969-), Jennifer Garner (1972-) and Jennifer Lawrence (1990-), as well as the singer/actress Jennifer Lopez (1969-).
Saints bearing the name include an 8th-century musician in the court of Charlemagne and an 11th-century French bishop who is the patron saint of brewers. It was also borne by Arnold of Brescia, a 12th-century Augustinian monk who rebelled against the Church and was eventually hanged. Famous modern bearers include American golfer Arnold Palmer (1929-2016) and Austrian-American actor and politician Arnold Schwarzenegger (1947-).