| Arne Zetterström | |
| Birth Date: | 5 June 1917 |
| Birth Place: | Malmö, Sweden |
| Death Place: | Äppelviken, Stockholm, Sweden |
| Known For: | Pioneering the use of hydrox for diving |
| Occupation: | Engineer, diver |
| Nationality: | Swedish |
Arne Zetterström (5 June 1917 – 7 August 1945[1]) is best known for his research with the breathing mixture hydrox for the Swedish Navy.[2]
Zetterström first described the use of hydrogen as a breathing gas in 1943. From 1943 to 1944, a total of six ocean dives were made utilizing this mixture with the deepest to 160 metres (96% hydrogen and 4% oxygen).[2]
On 7 August 1945 Zetterström experienced technical problems diving from HSwMS Belos. His support divers misread his signals and this was followed by a rapid ascent that resulted in fatal decompression sickness and hypoxia.[2]