| Date | Person | Description |
|---|---|---|
| 1687 – 1693 | Richaud, Jean | Missionary in India, Thailand |
| 1687 – 1687 | Rochette, Louis | Missionary in Thailand |
| 1556 – 1573 | Rodrigues, Francisco | Missionary in India |
| 1723 – | Roehr, Jean | Missionary in Peru |
| Savoy, Gaspar | Missionary | |
| 1619 – 1666 | Schall von Bell, Johann Adam | Missionary in China |
| 1618 – 1630 | Schreck, Johann | Missionary in China |
| 1718 – 1754 | Simonelli, Giacomo Filippo | Missionary in China |
| 1716 – 1735 | Slavíček, Karel | Missionary in China |
| 1643 – 1656 | Smogulecki, Jan Mikołaj | Missionary in Jakarta, Jiangnan, Hangzhou, Fujian, Nanjing, Manchuria, Guangdong |
| Smogulecki, Jan Mikołaj | During his time as missionary in China, Smogulecki collaborated with Aleni | |
| 1729 – 1748 | Soares, Diogo | Missionary in Brazil |
| 1599 – 1622 | Spinola, Carlo | Missionary in Japan |
| 1657 – 1705 | Stansel, Valentin | Missionary in Bahia |
| 1651 – 1662 | Storer, Franz | Missionary in India, Ethiopia |
| Suarez, Bonaventure | Missionary in Paraguay | |
| 1753 – 1760 | Szentmartony, Ignacije | Missionary in Brazil |
| Tieffenthaler, Joseph | Missionary in Asia | |
| 1743 – 1785 | Tieffenthaler, Joseph | Missionary in India |
| 1732 – 1758 | Trembloy, Jean-Baptiste | Missionary in India |