Christophe-Alphonse Geoffrion, PC (November 23, 1843 – July 18, 1899) was a Canadian lawyer, professor, and politician.

Born in Varennes, Canada East, the son of Félix Geoffrion and Catherine Brodeur, he was the brother of Félix Geoffrion, a notary and politician.

He graduated with a Bachelor of Civil Law degree from McGill College in 1866 and was called to the bar in 1866.

When his brother died in 1894, he was acclaimed in the resulting 1895 by-election in the riding of Verchères.

His brother, Victor Geoffrion was acclaimed to the seat after his death.