The Battle of Focchies was a significant naval engagement that took place on 12 May 1649, in the harbour of Focchies, Smyrna between a Venetian force of nineteen warships under the command of Giacomo da Riva, and an Ottoman force of eleven warships, ten galleasses, and seventy-two galleys, with the battle resulting in a crushing victory for the Venetian fleet.

The battle was an episode in the Cretan War from 1645 to 1669 between the Venetian Republic (along with its allies, the Knights of Malta, the Kingdom of France and the Papal States) and the Ottoman Empire over dominance of various territories in the Mediterranean Sea.

To reinforce his fleet before engaging the Ottomans, da Riva hired several English and Dutch armed merchantmen, promising to their captains that he would compensate them for any damages or casualties that they suffered.

When the Ottomans saw that the Venetian fleet advancing, ten galleasses were placed in front of the harbour entrance to cover the other ships.

[1] After the loss of Cyprus to the Ottomans in the fourth Ottoman–Venetian War (1570–1573), the island of Crete (the "Kingdom of Candia") was the last major overseas possession of the Venetian Republic.

Only two of Riva's ships actually managed to engage them, and in the ensuing chaos, the Ottoman fleet safely made it out of the Strait and headed southwards.

Many of the Venetian ships were hired Dutch or English armed merchantmen, and da Riva had to promise to compensate their captains for any damage, due to da Riva realizing that the Dutch or English captains would be unwilling to risk their ships unless they knew that they were going to be adequately compensated for their efforts.

However, da Riva was short one warship during the engagement, as the captain of the Esperienza had refused to sail into the harbour at all, instead keeping out to sea and only rejoining the fleet on the next day.

During the action, the Ottoman fleet was slowly overwhelmed and destroyed, as the crews proved no match for Venetian, English and Dutch ones in terms of gunnery skill and seamanship, with many abandoning their ships as they sunk in the harbour.

The San Bartolamio was able to be successfully regained by the crew of the Tre Re, whereas the Francese drifted onto the shore and was burnt and destroyed by Ottoman soldiers while beached.

[1] In total, the Venetian fleet suffered 105 men killed or wounded, alongside one warship destroyed, burnt by the Ottomans after it drifted onto the shore after being abandoned.