The ships that participated in the Battle of Lowestoft, a naval engagement between the English and Dutch off the English port of Lowestoft on 13 June (New Style) 1665 during the Second Anglo-Dutch War. 95 English ships (later rising to 100 when ships joined during the battle), commanded by James Stuart, Duke of York, faced 107 Dutch ships led by Jacob van Wassenaer, Baron Obdam. The battle ended in a victory for the English, capturing 9 Dutch ships and sinking 8 others, for the loss of only one ship (the Charity).

This article includes a list of general references, but it lacks sufficient corresponding inline citations. (December 2014)

Although the fleet list dated 10 May (20 May N.S.) names 109 vessels of the 6th Rate and above, 19 had been detached for other duties before the battle, while 5 previously unlisted vessels had arrived. Thus there were 95 ships at the commencement of the battle. 5 of the detached vessels rejoined the fleet during the battle, bringing the total to exactly 100 ships.^[1] This total included 24 hired merchantmen (indicated as such in the 'Notes' column).

The Dutch fleet comprised 107 ships carrying 4,864 guns and 21,613 men.^[3] Of these 107 ships, 81 were ships of the line from the five Dutch Admiralties, while 11 were hired merchantmen from the Dutch East India Company (Vereenigde Oostinische Compagnie), indicated by "VOC" in the lists below. There were also 9 frigates and 6 three-mast yachts. The Admiralty to which a ship belonged as indicated by a letter in parentheses preceding the name:

• (A) Amsterdam Admiralty
• (F) Friesland Admiralty
• (M) Maas (or Rotterdam) Admiralty
• (N) Noorderkwartier Admiralty
• (Z) Zeeland Admiralty

No attempt can be made to indicate order of battle as the Dutch had not adopted the line-ahead system at this date, but the ships are indicated by squadron, within each of which the order of precedence is given, with the ships of the admiral, vice-admiral and rear-admiral listed first.