|Date of birth||5 June 1998|
|Place of birth||Owerri, Nigeria|
|Diamond Football Academy|
|2016–2017||→ MVV Maastricht (loan)||29||(2)|
|2017||→ VVV-Venlo (loan)||9||(1)|
|2018||→ MVV Maastricht (loan)||12||(2)|
|2018–||→ Porto B (loan)||4||(0)|
* Senior club appearances and goals counted for the domestic league only and correct as of 7 July 2018|
‡ National team caps and goals correct as of 7 July 2018
Nwakali started his career at the Diamond Football Academy and after his performances at the 2015 FIFA U-17 World Cup, in which he won the Golden Ball Award, he signed with English Premier League side Arsenal.
MVV Maastricht (loan)
On 16 September 2016 it was announced that Nwakali had signed for Eerste Divisie side MVV Maastricht on loan for the season. He then made his professional debut for the side the same day against Jong Ajax. He came on as a 92nd-minute substitute for Thomas Verheijdt as MVV won 1–0.
On 29 August 2017, Nwakali joined Dutch side VVV-Venlo on loan for the first 6 months of the 2017–18 Eredivisie season. On 10 September 2017 Nwakali scored on his Eredivisie debut against FC Groningen, scoring a stoppage time equaliser in a 1-1 draw. After the initial 6 month loan deal expired, Nwakali elected to leave Venlo and return to MVV Maastricht for the second half of the season.
Return to MVV Maastricht (loan)
Porto B (loan)
Nwakali was named to the provisional squad for the Nigeria U17 side before the 2013 FIFA U-17 World Cup but did not make the final squad. However, coming into the 2015 U-17 World Cup he was named captain as he led his country to the title, winning the Golden Ball Award along the way.
- As of match played 30 September 2017 
|Club||Season||League||Domestic Cup||League Cup||Other||Total|
|MVV Maastricht (loan)||2016–17||Eerste Divisie||29||2||1||0||0||0||4[a]||1||34||3|
|VVV Venlo (loan)||2017–18||Eredivisie||9||1||2||0||0||0||—||—||11||1|
|MVV Maastricht (loan)||2017–18||Eerste Divisie||16||4||0||0||0||0||2[b]||0||18||4|
|Porto B (loan)||2018–19||LigaPro||4||0||0||0||0||0||—||—||4||0|
- "Osimhen and Nigeria the big winners". FIFA. 9 November 2015. Retrieved 16 September 2016.
- "Kelechi Nwakali completes Arsenal move with five-year deal". ESPN FC. 5 August 2016. Retrieved 16 September 2016.
- "Arsenal's Kelechi Nwakali joins MVV Maastricht on loan for season". ESPN FC. 16 September 2016. Retrieved 16 September 2016.
- "MVV 1-0 Jong Ajax". Soccerway.
- "Nwakali not recalled but rejected VVV Venlo loan extension".
- Kelechi Nwakali at Soccerway. Retrieved 4 October 2017.