- ITA - This is the most commonly used abbreviation for Italian. It is used in a variety of contexts, including language codes, country codes, and airline codes.
- I - This is a less common abbreviation for Italian, but it is sometimes used in place of ITA.
- IT - This abbreviation is sometimes used for Italian, but it is more commonly used for Italy (the country).
Portuguese:
- POR - This is the most commonly used abbreviation for Portuguese. It is used in a variety of contexts, including language codes, country codes, and airline codes.
- P - This is a less common abbreviation for Portuguese, but it is sometimes used in place of POR.
- PT - This abbreviation is sometimes used for Portuguese, but it is more commonly used for Portugal (the country).