James or Jim Walker may refer to:
British politicians
Sir James Walker, 2nd Baronet (1829–1899), British MP for Beverley
James Walker (colonial administrator) (1809–1885), Scottish colonial administrator James Walker (Labour politician) (1883–1945), British MP for Newport and Motherwell James Walker of Richmondhill (1837–c.1910), Scottish businessman and Lord Provost of Aberdeen
Canadian politicians
James Walker (Alberta politician) (1874–?), Canadian politician from Alberta
James Walker (Canadian judge) (1756–1800), English-born lawyer, judge and politician in Lower Canada James Edgar Walker (1911–1989), Canadian politician from Ontario James H. Walker (1885–1954), Canadian politician in Alberta
Australian politicians
James Walker (Australian politician) (1841–1923), Scottish-born Australian banker and politician James Walker (New South Wales politician) (1785–1856), member of the New South Wales Legislative Council James Walker (Queensland politician) (1869–1939), lawyer; member of the Queensland Legislative Assembly for Ipswich
US politicians
James A. Walker (1832–1901), American military officer and politician
James B. Walker (1812–1877), American politician in Michigan
James D. Walker (1830–1906), American politician from Arkansas
James Lorenzo Walker (1920–2003), American politician from Florida
James N. Walker, member of the California State Assembly
James P. Walker (1851–1890), American politician from Missouri
James Phenix Walker (1935–1966), member of the Mississippi House of Representatives James Ronald Walker (1947–2022), member of the Georgia State Senate Jimmy Walker (1881–1946), mayor of New York City
Sports
American
James J. Walker (American football) (1918–1975), American college football player and coach James Walker (American football player) (1890–1973), American football player on the 1910 College Football All-America Team James Walker (American football coach) (born 1944), American college football coach for the Kentucky Thorobreds James Walker (hurdler) (born 1957), American hurdler Jim Walker (American football coach) (born 1944), American football player and coach
Rest of world
James Walker (alpine skier) (1926–1996), Australian Olympic skier
James Walker (Australian footballer) (born 1979), Australian rules footballer
James Walker (canoeist) (born 1971), Australian sprint canoeist
James Walker (cricketer, born 1981), English cricketer
James Walker (cyclist) (1897–?), South African Olympic cyclist
James Walker (footballer, born 1987), English footballer
James Walker (racing driver) (born 1983), Jersey-born British racing driver
James Walker (rower) (born 1949), Canadian Olympic rower
James Walker (runner) (born 1954), Guamanian marathon runner
James Walker (sportsman) (1859–1923), Scottish rugby footballer and cricketer
James Higgs-Walker (1892–1979), English cricketer
Jim Walker (darts player) (born 1959), Scottish darts player
Jim Walker (English footballer) (born 1947), English footballer
Jim Walker (Scottish footballer) (1893–?), Scottish footballer
Jim Walker (rower) (born 1968), British Olympic rower
Writers
James Walker (writer/filmmaker) (born 1979), British writer and filmmaker
James Walker (television writer) (1973–2015), Australian television writer
James L. Walker (1845–1904), American individualist anarchist and writer
Musicians
James Walker (conductor) (1913–1988), Australian record producer and conductor
Jim Walker (drummer) (born 1955), Canadian drummer for the UK band Public Image Ltd Jimmy Walker (drummer) (1941–2020), American drummer and singer for The Knickerbockers Jim Walker (flautist), American flutist and educator