Anthony "Anto" Drennan (born on 1 November 1958) is an Irish guitarist and bassist noted for his involvement with the Corrs, Genesis and Mike + the Mechanics.

He grew up in County Dublin and attended Kilmacud National School.

Drennan became a touring lead guitarist for the Corrs from late 1995 and onwards.

In 2010, he was hired as the lead guitarist and secondary bassist of the revived Mike + the Mechanics.

He has also played with Clannad, Paul Brady, Moving Hearts, Chris Rea, Davy Spillane, the Liffey Light Orchestra,[1] and the Ronnie Drew Band.