Gilles Coustellier

{{short description|French mountain bike cyclist}}

{{Use dmy dates|date=September 2016}}

{{Infobox cyclist

| name = Gilles Coustellier

| image = File: 2010 UCI Mountain Bike and Trials World Championships - Mont-Sainte-Anne - Gilles Coustellier.jpg

| image_size =

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| full_name = Gilles Coustellier

| nickname =

| birth_date = {{birth date and age|df=yes|1986|5|31}}

| birth_place = Martigues, France

| height =

| weight =

| currentteam = Scorpio

| discipline = Trials

| role =

| ridertype =

| amateuryears1 =

| amateurteam1 =

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| majorwins = World Championships

:26-inch trials (2008, 2009, 2011, 2012, 2014)

| medaltemplates =

{{MedalCountry|{{FRA}}}}

{{MedalSport|Men's mountain bike trials}}

{{MedalCompetition|World Championships}}

{{MedalGold|2002 Kaprun | Junior trials, 20"}}

{{MedalGold|2003 Lugano | Junior trials, 26"}}

{{MedalGold|2008 Val di Sole | Trials, 26"}}

{{MedalGold|2009 Canberra | Trials, 26"}}

{{MedalGold|2011 Champéry | Trials, 26"}}

{{MedalGold|2011 Champéry | Trials, team}}

{{MedalGold|2012 Leogang-Saalfelden | Trials, 26"}}

{{MedalGold|2014 Lillehammer-Hafjell | Trials, 26"}}

{{MedalSilver|2002 Kaprun | Junior trials, 26"}}

{{MedalSilver|2003 Lugano | Junior trials, 20"}}

{{MedalSilver|2007 Fort William | Trials, 26"}}

{{MedalSilver|2009 Canberra | Trials, team}}

{{MedalSilver|2012 Leogang-Saalfelden | Trials, team}}

{{MedalSilver|2013 Pietermaritzburg | Trials, 26"}}

{{MedalSilver|2013 Pietermaritzburg | Trials, team}}

{{MedalSilver|2016 Val di Sole | Trials, 26"}}

{{MedalBronze|2011 Champéry | Trials, 20"}}

| show-medals = yes

}}

Gilles Coustellier (born 13 May 1986 in Martigues, France) is a French mountain bike trials cyclist. He specialises in 26-inch trials but has also competed in 20-inch trials.

Coustellier was UCI junior world champion in the 20-inch category in 2002 and then in the 26-inch category in 2003. In the UCI elite 26-inch category he has been world champion five times. Competing with the French team he was team trials world champion in 2011.

Gilles is the younger brother of Giacomo Coustellier, who is also a trials rider.