| Caspar Zyli | |
| Other Names: | Caspar Zili |
| Birth Name: | Caspar Zili |
| Birth Date: | 8 November 1717 |
| Birth Place: | St. Gallen, Switzerland |
| Death Place: | St. Gallen, Switzerland |
| Nationality: | Swiss |
| Known For: | Founding and leading original predecessor of Wegelin & Co |
| Children: | 9 |
Caspar Zyli also spelled Zili (8 November 1717 - 15 August 1778) was a Swiss merchant and banker who co-founded the predecessor of Wegelin & Co, which was Switzerland's oldest private bank until its dissolution.[1]
Zyli, respectively Zili, was born 8 November 1717 in St. Gallen, to Hans Anton Zili (1677-1744), cloth merchant and carrier, and Maria Magdalena Zili (née Meyer). He had a total of fifteen siblings. His family was fairly affluent and belonged to the Notenstein Guild in St. Gallen.[2]