The Oxford University undergraduate can currently speak 11 languages - English, Greek, German, Spanish, Russian, Dutch, Afrikaans, French, Hebrew, Catalan and Italian.
Entrants in the competition had to be aged between 16 and 22 and conversant in multiple languages.
Alex drew on all his skills to tell BBC News about his passion for learning languages and how he came to speak so many.
.bbc.co.uk
