Mertens

Mertens is a surname of Flemish origin, meaning "son of Merten" (Martin). It is the fifth most common name in Belgium with 18,518 people in 2008.

Geographical distribution
As of 2014, 43.4% of all known bearers of the surname Mertens were residents of Germany (frequency 1:2,728), 34.8% of Belgium (1:487), 8.8% of the United States (1:60,847), 5.9% of the Netherlands (1:4,188), 1.7% of France (1:57,632) and 1.0% of Brazil (1:299,871).

In Belgium, the frequency of the surname was higher than national average (1:487) only in one region: Flemish Region (1:367).

In Germany, the frequency of the surname was higher than national average (1:2,728) in the following regions:
 * 1. North Rhine-Westphalia (1:970)
 * 2. Saxony-Anhalt (1:1,361)

In the Netherlands, the frequency of the surname was higher than national average (1:4,188) in the following provinces:.
 * 1. Limburg (1:959)
 * 2. North Brabant (1:2,002)

Noble House of Mertens de Wilmars

 * Charles Mertens de Wilmars (1921–1994), Belgian psychiatrist
 * Josse Mertens de Wilmars (1912–2002), Belgian jurist

C

 * Charles Mertens (1862–1919), Belgian painter, printmaker and illustrator
 * Claas Mertens (born 1992), German rower
 * Conner Mertens (born ca. 1994), American football player

D

 * Dries Mertens (born 1987), Belgian footballer
 * Dylan Mertens (born 1995), Dutch footballer

E

 * Elise Mertens (born 1995), Belgian tennis player
 * Els Mertens (born 1966), Belgian racing cyclist
 * Ewald Mertens (1909–1965), German middle-distance runner

F

 * Frank Mertens (born 1961), German keyboardist and composer
 * Franz Mertens (1840–1927), German mathematician
 * Mertens conjecture, Mertens function, Mertens' theorems, and Meissel–Mertens constant
 * Franz Carl Mertens (1764–1831), German botanist

G

 * Gregory Mertens (1991–2015), Belgian footballer

H

 * Helmut Mertens (1917–1984), German fighter ace

J

 * Jan Mertens the Younger (died ca. 1527), South Netherlandish painter
 * Jan Mertens (1904–1964), Belgian cyclist.
 * Jan Mertens (1916–2000), Dutch politician
 * Jan Mertens (born 1995), Belgian footballer
 * Jean-François Mertens (1946–2012), Belgian game theorist known
 * Mertens-stable equilibrium, Mertens' voting game
 * Jerry Mertens (born 1936), American football cornerback
 * Jim Mertens (born 1947), American football player
 * John J. Mertens (1869 – >1924), South Dakota politician
 * Joseph Mertens (1921–2007), Belgian archaeologist

K

 * Karl Heinrich Mertens (1796–1830), German botanist and naturalist
 * Klaus Mertens (born 1949), German bass singer
 * Klaus Mertens (born 1950), German artist

L

 * Lennart Mertens (born 1992), Belgian footballer
 * Linda Mertens (born 1978), Belgian singer
 * Lothar Mertens (1959–2006), German historian

M

 * Michael Mertens (born 1965), German shot putter

P

 * Peter Mertens (born 1969), Belgian author and politician
 * Pierre Mertens (born 1939), Belgian writer
 * Pieter Mertens (born 1980), Belgian road bicycle racer
 * Peter Mertens   (born 1944)  Canadian politician

R

 * René Mertens (1922–2014), Belgian racing cyclist
 * Robert Mertens (1894–1975), German herpetologist
 * Mertens' water monitor
 * Robert Mertens's day gecko

S

 * Sibylle Mertens-Schaaffhausen (1797–1857), German art collector and musician
 * Stéphane Mertens (born 1959), Belgian motorcycle road racer

T

 * Thomas Mertens (fl. 1666–1669, Flemish still life painter
 * Tim Mertens (born 1986), Belgian racing cyclist

W

 * W. Mertens (fl. 1650–1675), Flemish still life painter
 * Wim Mertens (born 1953), Belgian musician

Y

 * Yannick Mertens (born 1987), Belgian tennis player

Z

 * Zenia Mertens (born 2001), Belgian footballer

Fictional characters

 * Finn Mertens, main protagonist of the American animated television series Adventure Time
 * Martin Mertens, a character who is Finn’s Father in the American animated television series Adventure Time
 * Mertens, the protagonist of the 1998 PlayStation video game Colony Wars: Vengeance