I am looking for another word for deported person, or a short form of saying it.
The word is deportee but you don't want to use that outside of a legal or political context, it's very uncommon in casual conversation. Normally we just say "he/she was deported" rather than using a specific noun.
In case you were tempted to use the abbreviation DP, just like to note a potential confusion: the acronym 'DP' as in 'DP camp', referring to groups of Eastern European war refugees in Germany in the aftermath of WWII, stands for 'displaced persons'. Not that any comment in this thread confused them, but just pointing it out. As a term 'DP' most likely would be confined to this historical context - I'm not sure if 'displaced persons' is still used in the context of international human rights etc or not.