| Eudokia Laskarina | |
| Birth Date: | 1210-1212 |
| Death Date: | after 1247 |
| Spouse: | Frederick II, Duke of Austria Anseau de Cayeux |
| House: | Laskaris |
| Father: | Theodore I Laskaris |
| Mother: | Anna Komnene Angelina |
Eudokia Laskarina Angelina (Greek, Modern (1453-);: {{lang|grc| Ευδοκία Λασκαρίνα Αγγελίνα, born between 1210 and 1212, died after 1247) was a Byzantine princess. She was a younger daughter of Emperor Theodore I Laskaris of Nicaea and Anna Komnene Angelina.
She was engaged to Robert I, Latin Emperor in 1221, but the marriage was blocked by the Patriarch of Constantinople. Her first marriage was with Frederick II, Duke of Austria. They would divorce, and before 1230 she would marry again, to Anseau de Cayeux, later regent of the Latin Empire (1237–1238).
In 1247, Anseau assigned to her custody of the city of Tzurulon in the hope that it would not be attacked by John III Doukas Vatatzes, who was married to Eudokia's sister Irene Laskarina.
Her name was Eudokia, but in one western source, related to her Austrian marriage, she is mentioned as Sophia.
. George Ostrogorsky. 1956. History of the Byzantine State. Oxford. Basil Blackwell.