Chukwuemeka was eligible to play for the national teams of
Austria,
France,
England, and
Nigeria.. After making two appearances for
England U17 national team, on 29 March 2021, he made his debut for the
England U18 squad in 2–0 victory over
Wales. On 2 September 2021, Chukwuemeka made his debut for the
England U19s during a 2–0 victory over
Italy U19s at
St. George's Park, he also captained the side. On 10 November 2021, he scored his first goal at this level, in a 4–0 victory over
Andorra U19 in a
2022 UEFA European Under-19 Championship qualification match. On 17 June 2022, Chukwuemeka was named in the England squad for the
2022 UEFA European Under-19 Championship finals. Chukwuemeka featured in every game of their tournament, scoring in group stage victories against
Austria and
Serbia. On 1 July 2022, he scored the second goal in England's 3–1 extra time victory over
Israel in the final. His performances during the competition led to his inclusion in the UEFA team of the tournament. On 21 September 2022, Chukwuemeka made his
England U20 debut during a 3–0 victory over
Chile at the
Pinatar Arena. On 10 May 2023, Chukwuemeka was included in the England squad for the
2023 FIFA U-20 World Cup. However, he didn't arrive at the tournament until after the group stages due to his club commitments. His only appearance of the tournament saw him start in their round of sixteen defeat against
Italy. In March 2024, Chukwuemeka received his first call-up to the
England U21 squad for their matches against Azerbaijan and Luxembourg. However, he was unable to feature in either match as he withdrew from the squad due to a knock sustained while on international duty. On 9 March 2026, Chukwuemeka's request to his switch international allegiance to Austria was approved by FIFA. On 27 March 2026, he made his debut in a friendly in
Vienna against
Ghana, and scored his team's 4th goal in an eventual 5-1 victory. ==Personal life==