(1656–1728), British naval officer Hub Walker (1906–1982), American baseball player Hunter Walker (born 1984), American reporter I Iain Walker (born 1976), British diplomat Ida Walker (1876–1968), American politician Ignacio Walker (born 1956), Chilean politician Ivy Walker (1911–??), English athlete J Jabari Walker (born 2002), American basketball player Jabez K. Walker, American politician Jamall Walker (born 1977), American basketball coach Jamar K. Walker, American lawyer Jamil Walker (born 1981), American soccer player Janet Walker, Canadian scholar Janet Walker (costumier) (1850–1940), Australian businesswoman Jarace Walker (born 2003), American basketball player Jarrett Walker (born 1962), American transit consultant Jarvis Walker (basketball) (born 1966), American basketball player Jasmine Walker (born 1998), American basketball player Javon Walker (born 1978), American football player Jayden Walker (born 1996), Italian rugby league footballer J. Brent Walker (born 1950), American minister and lawyer Jean Nellie Miles Walker (1878–1918), Australian nurse Jearl Walker (born 1945), American physicist Jefferson Cobb Walker (1845–??), American politician Jemma Walker, English actress Jenny Walker (born 1956), Australian tennis player Jenonne R. Walker (born 1934), American ambassador Jerald Walker, American writer Jermaine Walker (born 1977), American basketball player Jerry Walker (born 1939), American baseball player Jerry Jeff Walker (1942–2020), American singer-songwriter Jesse Walker (born 1970), American editor Jesse Walker (Methodist) (1766–1835), American minister Jessica Walker (born 1990), British canoeist Jessie Walker (born 1994), English cyclist J. H. Walker (1860–1947), American land commissioner Jimmie Walker (born 1947), American actor and comedian Joan Walker, Canadian writer Joaquín Garrigues Walker (1933–1980), Spanish politician Johnny "Big Moose" Walker (1927–1999), American blues pianist and organist Jon Walker (born 1985), American musician Josiah Walker (1761–1831), Scottish author Josie Walker (born 1970), Northern Irish actress Joyce Walker (born 1961/1962), American basketball player J. P. Walker (born 1976), American snowboarder J. Samuel Walker, American historian Judy L. Walker, American mathematician Julian Walker (born 1986), Swiss ice hockey player Julian F. Walker (1929–2018), British cartographer Julius Waring Walker Jr. (1927–2003), American diplomat Junior Walker (1931–1995), American instrumentalist K Kara Walker (born 1969), American artist Kara Odom Walker, American physician Kareem Walker (born 1998), American football player Katie Walker (born 1969), British furniture designer Katie Walker (netball) (born 1978), Australian netball player Kathryn Walker (born 1943), American actress Keenan A. Walker, American researcher Keenyn Walker (born 1990), American baseball player Kelley Walker (born 1969), American artist Kemba Walker (born 1990), American professional basketball player Ken Walker (1919–2013), Australian rules footballer Kenney Walker (born 1988), American soccer