Secretary, record keeper, or high official
Derived from the Late Latin word 'cancellarius', which originally referred to a court official who stood by the 'cancelli' or lattice screen of a court of law. Over time, it evolved into a title of high rank in government or the church, such as a Lord Chancellor. As a given name, it is a rare variant of the more common surname-name Chancellor.
Less common today
Chanceler isn't in the latest US Top 1000. It last peaked at #5,098 in 1994.
US births per 5-year period, 1990βpresent (SSA data).
Grammy-winning rapper known professionally as Chance the Rapper