Swimming at the 2010 Commonwealth Games – Men's 100 metre butterfly

{{short description|None}}

{{Use dmy dates|date=December 2021}}

{{Infobox Commonwealth Games event

|event = Men's 100 metre butterfly

|games = 2010

|image =

|caption =

|venue = SPM Swimming Pool Complex

|dates = {{Start date|2010|10|07|df=yes}} (heats & semis)
{{End date|2010|10|08|df=yes}} (final)

|competitors = 35

|nations = 22

|win_value = 51.69

|gold = Geoff Huegill

|goldCGA = AUS

|silver = Ryan Pini

|silverCGA = PNG

|silver2 = Antony James

|silverCGA2 = ENG

|prev = 2006

|next = 2014

}}

{{AquaticsAt2010CommonwealthGames}}

The Men's 100 metre butterfly event at the 2010 Commonwealth Games took place on 7 and 8 October 2010, at the SPM Swimming Pool Complex.{{cite web | url=http://results.cwgdelhi2010.org/en/Comp.mvc/DetailedScheduleByDate?sportCode=SW&day=07-10-2010&expandAll=False | archive-url=https://web.archive.org/web/20101007170010/http://results.cwgdelhi2010.org/en/Comp.mvc/DetailedScheduleByDate?sportCode=SW&day=07-10-2010&expandAll=False | url-status=usurped | archive-date=7 October 2010 | title=XIX Commonwealth Games 2010 Delhi | }} Ryan Pini of Papua New Guinea was the defending champion, and was in Delhi to defend his title, appearing as one of his country's best hopes for a medal.[http://australianetworknews.com/stories/201010/3032588.htm "PNG and Tongan swimmers make Delhi finals"], Australia Network News, 7 October 2010

Five heats were held, with most containing the maximum number of swimmers (eight). The top sixteen advanced to the semifinals and the top eight from there qualified for the finals.