Francis Wichmans (1596–1661), in religion Augustinus, was a Premonstratensian spiritual author, missionary, and abbot of Tongerlo Abbey.

As a teenager he entered Tongerlo Abbey, being clothed in the habit on 21 September 1612 and taking the name in religion Augustinus.

After the fall of 's-Hertogenbosch to the Dutch Republic in 1629, Bishop Michael Ophovius was obliged to leave his city, and resided at Geldrop, three miles from Mierlo.

In 1634 the Retorsion laws were made, whereby Catholic priests were expelled, their churches confiscated and handed over to Protestant preachers.

When Verbraecken died on 22 June 1644, Wichmans succeeded him as abbot, being installed by Johannes Chrysostomus vander Sterre on 9 July, and consecrated by bishop De Bergaigne of 's-Hertogenbosch.