Namesakes
Emmy Award Winners:
1 actor
(actor) Alan Rickman (a.k.a. Sidney) 1996 Rasputin: Dark Servant of Destiny 
Fictional Characters from Movies:
1 hero
Sidney Prescott 1996 Scream
Fictional Characters from Television:
1 character
Sidney Trumaine 2001 Crossing Jordan
Hall-of-Famers:
1 basketball
(basketball) Sidney Moncrief 2019
Italian Presidents and Prime Ministers:
1 prime minister
(prime minister) Sidney Sonnino 1906; 1909-1910
Most Valuable Players:
1 winner
Sidney Crosby 2007; 2014 ice hockey
New Zealand Prime Ministers:
1 prime minister
Sidney Holland 1949-1957
Nobel Prize Winners:
1 chemistry
(chemistry) Sidney Altman 1989
Notable Actors and Actresses:
3 actors
Sidney Poitier 1927-2022
Charles Grodin (a.k.a. Sidney) 1935-2021
Alan Rickman (a.k.a. Sidney) 1946-2016
Notable Athletes:
1 basketball, 1 ice hockey
(basketball) Sidney Moncrief 1957-
(ice hockey) Sidney Crosby 1987-
Notable Hosts and Presenters:
1 television
(television) Charles Grodin (a.k.a. Sidney) 1935-2021
Notable Politicians and Statespeople:
2 politicians
Sidney J. van den Bergh 1898-1977
John McCain (a.k.a. Sidney) 1936-2018
Olympic Medalists:
2 silver, 1 bronze, 1 gold, 1 silver/bronze/gold, 1 silver/gold
(silver/bronze/gold) Sidney Robinson 1900 3000 m steeplechase; 4000 m steeplechase; 5000 m team
(silver) Sidney Hatch 1904 4 mile team
(bronze) Sidney Jelinek 1924 rowing
(silver/gold) Sidney Atkinson 1924; 1928 110 m hurdles
(silver) George Simpson (a.k.a. Sidney) 1932 200 m
(gold) Sidney Crosby 2010; 2014 ice hockey
Oscar Award Winners:
1 actor
(actor) Sidney Poitier 1963 Lilies of the Field
Saints:
1 blessed
Blessed Sidney Hodgson ?-1591