1939(Carlo Maquardt CM-381)
- Type: Tanker
- Displacement: 6,341 grt / 9,070 dwt
- Dimensions: 446'5" x 54'6" x 25'8"
- Machinery: diesel = 12 knots
- Builder: Nederlandsche Dok Maatschapij, Amsterdam, Netherlands, 1939
- Service: Sailed for La Corona, a subsidiary of Royal Dutch Shell. On 11 Nov 1942 she was SW of the Cocos Islands in the the Indian Ocean being escorted by RIN minesweeper HMIS Bengal, when they were attacked by a pair of Japanese armed merchant cruisers: Aikoku Maru and Hokoku Maru. The latter caught fire during the engagement, then exploded and sank. Ondina was damaged but repaired and then stationed in Exmouth Gulf in Western Australia from Jun 1943 to supply fuel to US submarines. Postwar she remained in commercial service until being scrapped in 1959.