6 (Spanish: Regimiento de Infantería "Saboya" nº 6) is a infantry unit of the Spanish Army, whose origins date back to 1633.

On 30 March 1633, a new Tercio of Savoy was created by dividing the existing Tercio of Lombardy; based in Cremona, the new unit consisted of 11 companies with a total of 109 officers and 1,200 men and remained in Italy until the War of the Spanish Succession, when it was transferred to Spain following the 1706 Convention of Milan.

[1] In 1707, by Royal Order of His Majesty Philip V of Spain, first Bourbon king of the Spanish Empire, it became a two battalion unit known as the Regiment of Savoy Nº 3.

The shield, surrounded by the order of the Golden Fleece and surmounted by a royal crown.

In 1813 it was moved to America and fought in Mexico and in the Viceroyalty of the Río de la Plata.