As a Christian name, Samuel came into common use after the Protestant Reformation. It has been consistently popular in the English-speaking world, ranking yearly in the top 100 names in the United States (as recorded since 1880) and performing similarly well in the United Kingdom.
Famous bearers include English poet Samuel Taylor Coleridge (1772-1834), American inventor Samuel Morse (1791-1872), Irish writer Samuel Beckett (1906-1989), and American actor Samuel L. Jackson (1948-). This was also the real name, Samuel Clemens, of the American author Mark Twain (1835-1910).
During the late Middle Ages this name was typically among the five most common for English males (with John, William, Robert and Thomas). It remained fairly popular through to the modern era, peaking in the United States in the 1940s and in the United Kingom a bit later, and steadily declining since that time.
Famous bearers include two German opera composers, Richard Wagner (1813-1883) and Richard Strauss (1864-1949), as well as British explorer Richard Burton (1821-1890), American president Richard Nixon (1913-1994), American physicist Richard Feynman (1918-1988), British actor Richard Burton (1925-1984) and American musician Little Richard (1932-2020).
Famous bearers include the German intellectual Max Weber (1864-1920) and the German physicist Max Planck (1858-1947). This name is also borne by the title character in the Mad Max series of movies, starting 1979.
This name became very popular in the second half of the 20th century. It reached the top ten names for boys in France (by 1997), Belgium (1998), Denmark (2003), Canada (2008), the Netherlands (2009), New Zealand (2009), Australia (2010), Scotland (2013), Spain (2015) and the United States (2018).
Heinrich was popular among continental royalty, being the name of seven German kings, starting with the 10th-century Henry I the Fowler (the first of the Saxon kings), and four French kings. In France it was usually rendered Henri from the Latin form Henricus.
The Normans introduced the French form to England, and it was subsequently used by eight kings, ending with the infamous Henry VIII in the 16th century. During the later Middle Ages it was fairly popular, and was generally rendered as Harry or Herry in English pronunciation. Notable bearers include arctic naval explorer Henry Hudson (1570-1611), American-British novelist Henry James (1843-1916), American automobile manufacturer Henry Ford (1863-1947), and American actor Henry Fonda (1905-1982).
In the English-speaking world this name is more commonly given to girls. This is due to the American actress Alexis Smith (1921-1993), who began appearing in movies in the early 1940s. It got a boost in popularity in the 1980s from a character on the soap opera Dynasty.