What was the name of the Philistine god who fell on his face (twice) in front of the ark of God in Ashdod?

Dagon

And the Philistines took the ark of God, and brought it from Ebenezer unto Ashdod.

When the Philistines took the ark of God, they brought it into the house of Dagon, and set it by Dagon.

And when they of Ashdod arose early on the morrow, behold, Dagon was fallen upon his face to the earth before the ark of the LORD. And they took Dagon, and set him in his place again.

And when they arose early on the morrow morning, behold, Dagon was fallen upon his face to the ground before the ark of the LORD; and the head of Dagon and both the palms of his hands were cut off upon the threshold; only the stump of Dagon was left to him. 1 Samuel 5:1-4