The Triumphal Arch of the Lorraine located in Piazza della Libertà in Florence, Italy, is an 18th-century, monumental triumphal arch, bypassed by the viali di Circonvallazione that skirt Florence through the space once girded by its 16th-century walls. The piazza stands at the northernmost end of Via Cavour, Florence, region of Tuscany, Italy.

The arch was begun after 1737 to welcome the January 1739 arrival of the Habsburg-Lorraine dynasty; it was past this arch that the same dynasty was to leave for exile in 1859.

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