American football •
Bill Smith (American football, born 1912) (1912–1999), American football end •
Bill Smith (American football, born 1926) (1926–2009), American football tackle and end •
Billy Ray Smith Jr. (born 1961), American football player •
Billy Ray Smith Sr. (1935–2001), American football player •
Wee Willie Smith (American football) (1910–1996), American football player •
William F. Smith (American football) (1888–?), American college football player and coach •
Willie Smith (American football coach) (1931–2016), 12th head college football coach for the North Carolina Central University Eagles •
Willie Smith (offensive tackle, born 1937) (born 1937), former American football player •
Willie Smith (offensive tackle, born 1986) (born 1986), American football offensive tackle •
Willie Smith (tight end) (born 1964), American football tight end •
Will Smith (defensive end) (1981–2016), American football defensive end •
Will Smith (linebacker, born 1992), American football linebacker
Association football •
Bill Smith (footballer, born 1887) (1887–1929), English footballer with Brentford, Southampton and Halifax Town •
Bill Smith (footballer, born 1897) (1897–?), English footballer with Durham City and York City •
Bill Smith (footballer, born 1906) (1906–1979), English footballer with Norwich City and Exeter City •
Bill Smith (footballer, born 1926) (1926–2014), English footballer with Birmingham City and Blackburn Rovers •
Bill Smith (footballer, born 1938), Scottish footballer with Raith Rovers and Darlington •
Bill Smith (soccer), Canadian soccer player, active 1943–1963 •
Billy Smith (footballer, born 1872) (1872–?), English footballer with Wolverhampton Wanderers •
Billy Smith (footballer, born 1873) (1873–1914), Scottish footballer for Newcastle United •
Billy Smith (footballer, born 1882) (1882–?), English footballer for West Bromwich Albion and Birmingham •
Billy Smith (footballer, born 1895) (1895–1951), English footballer with Huddersfield Town •
Billy Smith (footballer, born 1900) (1900–?), English footballer with Hartlepool United, Huddersfield Town and Rochdale •
Billy Smith (footballer, born 1906) (1906–1963), English footballer with South Shields, Portsmouth and Stockport County •
Billy Smith (Scottish footballer) (c. 1931–2009), Scottish footballer with Aberdeen •
Buxton Smith (William Smith), English footballer with Buxton and Manchester City •
Stockport Smith (William Smith), English footballer with Stockport and Manchester United •
William A. Smith (footballer), English footballer with Blackburn Rovers •
William Smith (footballer, born 1865) (1865–?), English goalkeeper with Burnley •
William Smith (footballer, born 1868) (1868–1907), English footballer with Lincoln City, Loughborough, Notts County and Nottingham Forest •
William Smith (footballer, born 1886) (1886–1956), footballer with Bradford City and Stoke •
William Smith (footballer, born 1903) (1903–?), English footballer •
William Smith (Scottish footballer), footballer with Hibernian •
Willie Smith (footballer, born 1909), Scottish footballer see
List of AFC Bournemouth players •
Willie Smith (footballer, born 1943), Scottish footballer with Brentford •
Willie Smith (footballer, born 1948), English footballer with Wimbledon •
Will Smith (footballer, born 1998), English footballer for Harrogate Town •
W. J. "Billy" Smith, football manager, Aston Villa
Baseball •
Big Bill Smith (1869–?), Negro leagues baseball catcher and manager •
Bill Smith (baseball executive) (born 1958), Minnesota Twins general manager •
Bill Smith (baseball manager), National Association player-manager for the Baltimore Marylands •
Bill Smith (pitcher) (1934–1997), American left-handed pitcher in Major League Baseball, 1958–59; 1962 •
Bill Smith (outfielder) (1865–1886), American baseball outfielder for the 1884 Cleveland Blues •
Billy Smith (baseball coach) (born 1930), American minor league first baseman and manager and Major League coach and scout •
Billy Smith (1980s pitcher) (1954–2025), American pitcher in Major League Baseball, 1981 •
Billy Smith (1880s pitcher) (1861–1928), American right-handed pitcher in Major League Baseball, 1886 •
Billy Smith (second baseman) (born 1953), American infielder in Major League Baseball, 1975–79; 1981 •
Willie Smith (outfielder) (1939–2006), American outfielder in Major League Baseball, 1963–1971 •
Willie Smith (third baseman), American third baseman in Negro league baseball, 1938 •
Willie Smith (1940s pitcher), American pitcher in Negro league baseball, 1948 •
Willie Smith (1990s pitcher) (born 1967), American pitcher in Major League Baseball, 1994 •
Will Smith (pitcher) (born 1989), American pitcher in Major League Baseball •
Will Smith (catcher) (born 1995), American baseball catcher •
Dark Night Smith (William C. Smith), American pitcher in Negro league baseball, 1920–1924
Basketball •
Bill Smith (basketball, born 1939) (1939–2023), American basketball player •
Wee Willie Smith (1911–1992), American basketball player •
William Smith (basketball, born 1949), American basketball player •
Willie Smith (basketball) (born 1953), American professional basketball player
Cricket •
Bill Smith (cricketer) (1937–2018), English cricketer •
William Brook-Smith (1885–1952), New Zealand cricketer •
William Smith (cricketer, born 1839) (1839–1897), first class cricketer for Yorkshire •
William Smith (cricketer, born 1875) (1875–1942), first-class cricketer for London County •
William Smith (cricketer, born 1882) (1882–?), English cricketer •
William Smith (cricketer, born 1900) (1900–1990), English cricketer •
William Smith (cricketer, born 1902) (1902–1937), Scottish cricketer •
William Smith (Kent cricketer) (1819–1883), English cricketer •
William Smith (Somerset cricketer) (1871–1946), English cricketer •
Willie Smith (cricketer) (1885–1964), English cricketer •
Will Smith (cricketer) (born 1982), English cricketer
Rugby football • Bill Smith, Australian rugby league footballer in the
Bulimba Cup • Bill Smith, rugby league right wing of the 1950s for
Whitehaven •
Billy Smith (rugby league, born 1942), Australian rugby league player •
Billy Smith (rugby league, born 1999), Australian rugby league player •
W. Smith (rugby league) (active 1908–1912), Australian rugby league player •
Will Smith (rugby league) (born 1992), Australian rugby league player •
William Smith (rugby union) (1881–1945), New Zealand rugby union player •
Bill Smith (rugby league), Australian rugby league player
Other sports •
Bill Smith (Australian rules footballer) (1936–2010), Australian rules footballer for Fitzroy •
Billy Smith (Australian footballer) (1894–1953), played with North Melbourne in the Victorian Football League •
Bill Smith (fell runner) (1936–2011), fell runner and author on the sport •
Bill Smith (motorcyclist) (born 1935), former Grand Prix motorcycle road racer •
Bill Smith (poker player) (1934–1996), professional poker player •
Bill Smith (swimmer) (1924–2013), two-time gold medalist in the 1948 Olympic games •
Billy Dee Smith (born 1982), Canadian former professional lacrosse player •
Billy Smith (ice hockey) (born 1950), Canadian ice hockey goaltender •
Mysterious Billy Smith (1871–1937), Canadian boxer •
Will Smith (ice hockey) (born 2005), American ice hockey forward •
William Alexander Smith (boxer) (1904–1955), South African boxer of the 1920s •
William Smith (cyclist, born 1893) (1893–1958), South African Olympic cyclist •
William Smith (cyclist, born 2004) (1893–1958), British cyclist •
William Smith (ice hockey) (born 2005), American hockey player •
William Smith (field hockey) (1886–1937), British field hockey player who competed in the 1920 Summer Olympics •
William Smith (sport shooter) (1877–1953), Canadian Olympic sport shooter •
William Smith (wrestler) (1928–2018), 1952 Olympic gold medalist •
Willie Smith (billiards player) (1886–1982), English professional player of snooker and English billiards •
Willie Smith (golfer) (1876–1916), Scottish golfer •
Willie Smith (hurdler) (born 1977), Namibian track and field hurdler •
Willie Smith (sprinter) (1956–2020), American 400 metres runner ==Politics==