Siw Malmkvist
- Born
- 31 December 1936 (89 years)
- Place of birth
- Landskrona, Malmöhus län, Sweden [now Skåne län, Sweden]
- Gender
- Female
Swedish singer who has been popular in Scandinavia and West Germany. She had a number one hit in West Germany in 1964 with "Liebeskummer lohnt sich nicht" (English: "Lovesickness Is Not Worthwhile"), and on 18 July 1964 she became the first Swede to have a hit on the US Billboard Hot 100 chart, when "Sole Sole Sole", a duet with Italian singer Umberto Marcato, entered the chart, peaking at #58.
