Gracious
Jonh is a rare variant of John, which originates from the Hebrew name Yochanan. It signifies the belief that God has been merciful or gracious. While the 'h' is typically placed before the 'n', this specific spelling is an uncommon transposition often found in non-English speaking regions or as a unique family variant.
Less common today
Jonh isn't in the latest US Top 1000. It last peaked at #5,529 in 1993.
US births per 5-year period, 1990βpresent (SSA data).