Johnny McDonnell was an Irish soccer player during the 1900s and 1910s.

He played for the amateur Bohemians

Bohemian F.C.

Bohemian F.C. , more commonly referred to as Bohemians, is a professional football club from Dublin, Ireland. Bohemians compete in the Premier Division of the League of Ireland and are the third most successful club in League of Ireland football history, having won the League of Ireland title 11...

 during his career in Ireland. McDonnell was an ace goalscorer whose best season came in 1911-12

Irish League 1911-12

-League standings:-References:*...

 when he netted 32 times from just 30 appearances (14 from 14 in the league). This marginally eclipsed his previous best total of 31 goals in 28 appearances (15 in 9 league appearances) in 1908-09

Irish League 1908-09

-League standings:-References:*...

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Both of these appear in the top 10 of Bohemian record goalscoring seasons.