A native of [[Bettystown]], [[County Meath]] a village located outside the town of [[Drogheda]]. , Ferguson is son of former professional footballer [[Barry Ferguson (Irish footballer)|Barry Ferguson]] who played for [[Coventry City F.C.|Coventry City]], [[Colchester United F.C.|Colchester United]], [[Hartlepool United F.C.|Hartlepool United]], [[Northampton Town F.C.|Northampton Town]], [[Longford Town F.C.|Longford Town]], [[Bohemian F.C.|Bohemians]], [[Shamrock Rovers F.C.|Shamrock Rovers]] and [[Sporting Fingal F.C.|Sporting Fingal]] during his playing career.<ref>{{Cite web |url=https://www.meathchronicle.ie/2021/01/09/meath-teenager-heading-for-brighton/ |title=Meath teenager heading for Brighton |date=9 January 2021 |website=Meath Chronicle}}</ref> His mother is English.<ref>{{Cite news |last=Rowan |first=Paul |title=Could Evan Ferguson go the same way as Declan Rice and Jack Grealish? |language=en |url=https://www.thetimes.co.uk/article/could-evan-ferguson-go-the-same-way-as-declan-rice-and-jack-grealish-z22qkqlgs |access-date=2023-02-20 |issn=0140-0460}}</ref> He grew up supporting [[Manchester United F.C.|Manchester United]].<ref>{{Cite web |url=https://www.brightonandhovealbion.com/news/2443524/ferguson-i-grew-up-watching-welbeck |title=Ferguson: I grew up watching Welbeck |website=www.brightonandhovealbion.com}}</ref> He attended [[Coláiste na hInse]] growing up.<ref>{{cite web |url=https://theathletic.com/4602740/2023/08/08/evan-ferguson-premier-league/ |title=Evan Ferguson, concrete playground to golden boy – the rise of a teen sensation |website=theathletic.com |date=8 August 2023 |accessdate=4 September 2023 |url-access=subscription}}}</ref>
Ferguson began playing with the prestigious [[Dublin]] schoolboy club [[St. Kevin's Boys F.C.|St Kevin's Boys]], before moving on to the youth section of [[League of Ireland]] club [[Bohemian F.C.|Bohemians]], where he would play in the National Underage Leagues.<ref>{{Cite web |url=https://www.the42.ie/ken-donohoe-interview-5473682-Jun2021/ |title='Division, in-fighting, backstabbing - soccer in Ireland is absolutely plagued by that' |date=27 June 2021}}</ref> In December 2020, he scored in his last game at underage level for the club as his side won the [[League of Ireland U17 Division]], beating rivals [[Shamrock Rovers F.C.|Shamrock Rovers]] 2–0 in the final.<ref>{{Cite web |url=https://www.irishexaminer.com/sport/soccer/arid-40195116.html |title=Bohemians see off Shamrock Rovers to claim U17 National League crown |date=21 December 2020}}</ref><ref>{{Cite web |url=https://www.lmfm.ie/news/sport/meath-teenager-evan-ferguson-makes-move-to-brighton/ |title=Meath teenager Evan Ferguson makes move to Brighton}}</ref>
