出場次數、進球數截至 2012 年 5 月 30 日，年齡截至 2012 年 6 月 8 日揭幕戰。



A 組

 波蘭

總教練: 佛蘭克茨克・斯穆達（Franciszek Smuda）

2012 年 5 月 27 日，波蘭主帥斯穆達確定了歐國盃的參賽名單，兵工廠門將法比安斯基因為肩部受傷退出。

 希臘

Head coach: Fernando Santos

Santos named his first shortlist, composed of players based abroad, on 10 May 2012, and the second, composed of Greece-based players on 17 May 2012, totalling a 25-player provisional list.
On 28 May 2012, Santos announced his 23-man squad

 

 俄羅斯

Head coach: Dick Advocaat

On 11 May 2012, Advocaat named a provisional list of 26 players for the tournament. Vasili Berezutski and Roman Shishkin withdrew on 20 and 24 May respectively, Berezutski with a thigh injury and Shishkin due to a stomach complaint. Artem Dzyuba and Magomed Ozdoyev were excluded from the squad after a friendly game on 25 May, and Shishkin was replaced by Nababkin, thus finalizing the squad.

 捷克

Head coach: 米哈爾・比萊克

Michal Bílek announced his 24-man provisional squad on 14 May. On 28 May, he replaced Daniel Pudil with Vladimír Darida. The following day, the 23 man squad was confirmed, with Tomáš Grigar dropping out.



B 組

 荷蘭

主教練： 范馬爾維克（Bert van Marwijk）

 丹麥

主教練： 摩頓・奧臣

Denmark coach Morten Olsen named a 20-man squad for the tournament on 16 May, with the three remaining berths to be filled. Anders Lindegaard was selected on 19 May. Jores Okore and Nicklas Pedersen were selected on 24 May. Numbers were given the next day. On 29 May, Kasper Schmeichel replaced the injured Thomas Sørensen.

 德國

總教練: 勒夫

2012 年 5 月 28 日，勒夫公布了德國國家隊的 23 人名單。

 

 葡萄牙

Head coach: Paulo Bento

Paulo Bento named his final 23-man squad on 14 May 2012. On 23 May, Hugo Viana replaced Carlos Martins after Martins suffered a calf injury. On 24 May, the squad numbers were announced.

 



C 組

 西班牙

Head coach: Vicente del Bosque

Vicente del Bosque named a provisional squad on 15 May 2012, but it did not include any Barcelona, Athletic Bilbao, or Chelsea players as the two Spanish sides were preparing for the Copa del Rey final on 25 May, while Chelsea were to take on Bayern Munich in the Champions League decider on 19 May. On 21 May, del Bosque called-up Chelsea players Fernando Torres and Juan Mata. On 27 May, del Bosque gave the final squad list, complete with Barcelona and Athletic Bilbao players.

 義大利

總教練: 切薩雷・普蘭德利

Cesare Prandelli named a provisional 32-man squad on 13 May 2012, the final day of the 2011–12 Serie A season. Domenico Criscito was later excluded from the provisional squad due to potential involvement in a match-fixing scandal. On 29 May, Prandelli announced the final squad list.

 愛爾蘭

主教練： 吉奧瓦尼・特拉帕托尼

On 7 May 2012, Giovanni Trapattoni announced his 23-man squad list for Euro 2012, along with a five-man stand-by list. The Republic of Ireland team is the only squad to contain no players playing in its domestic league, and its captain, Robbie Keane of LA Galaxy, is one of only two players in Euro 2012 who plays in a league outside of UEFA. Keith Fahey withdrew injured on 26 May and was replaced by Paul Green. On 29 May Kevin Foley was replaced by Paul McShane due to injury.

 克羅埃西亞

Head coach: Slaven Bilić

On 10 May 2012 a provisional list of 27 players was announced. On 29 May, the final 23 man squad was announced, with Nikola Kalinić, Šime Vrsaljko, Goran Blažević and Dejan Lovren dropped from the provisional list.

 



D 組

 烏克蘭

Head coach: Oleh Blokhin

On 8 May 2012 Blokhin named a provisional list of 26 players for the tournament.
On 29 May 2012 Blokhin announced the final squad for the tournament.

 瑞典

Head coach: Erik Hamrén

Erik Hamrén announced Sweden's 23-man squad on 14 May 2012. Christian Wilhelmsson is one of only two players in Euro 2012 based outside UEFA; he currently plays in the Saudi Professional League. 

 

 英格蘭

主教練： 霍奇森
霍奇森公佈了參加 2012 年歐國盃的 23 人名單。此外霍奇森還公佈了 5 名候補球員，利物浦的喬丹・亨德森，曼城邊鋒亞當・強森、切爾西前鋒史杜歷治、艾佛頓中後衛菲爾・積基爾卡入圍。5 月 25 日，原定 3 號門將約翰・魯迪（John Ruddy）在練習時手指骨折退隊，並由效力伯明罕城的傑克・巴特蘭頂替 。5 月 28 日中場加雷斯・巴里在友誼賽挪威時拉傷鼠蹊，被迫退出由效力艾佛頓的菲爾・積基爾卡補上。5 月 31 日，中場法蘭克・蘭帕德練習時拉傷大腿退隊，效力利物浦的喬丹・亨德森將取代蘭帕德的位置 。

 法國

Head coach: 羅倫特・白蘭斯

Blanc named his first shortlist on 9 May 2012, consisting of 12 players playing abroad. On 15 May 2012 second shortlist of 15 France-based players was announced, while on the same day Tottenham defender Younès Kaboul was ruled out of the tournament with a knee injury. On 29 May 2012 Blanc announced his final 23 man squad