Constanzo Porta (* 1528; † 1601), Italian composer of the Renaissance.

Antonio della Porta (* 1631; † 1702), Italian architect.

Or a surname referring to one the following people:

Giambattista della Porta (* 1535; † 1615), Neapolitanian physician and playwright.

Giacomo della Porta (* 1532; † 1602), Italian sculptor and architect.

Giovanni Porta (* 1675; † 1755), Italian composer.

Porta, Pyrénées-Orientales, a commune in France

Transverse fissure of the liver.

Porta Maggiore in Rome, Italy.

Porta Nigra in Trier, Germany.

Porta San Paolo in Rome, Italy.

A mobile GSM carrier of Ecuador owned by América Móvil.

Porta Westfalica in Germany.

Porta a neighbourhood of Barcelona, Spain.

Carlo Porta (* 1775; † 1821), Italian poet in the Milanese dialect.

Hugo Porta (* 1951), Argentinian rugby union footballer.

Livio Dante Porta (* 1923, † 2003), Argentinian engineer.

It also is the word meaning both door and city gate in some Romance languages.