Yes there are Giants in the Bible and they are not just men of re-known but giants of fame. The Titans, the sons of the Gods were just giants and most of them were abominations with a repugnant physical image.
The Ancient mythological figures were also giants, those evil greek characters were giants and how strange they were monsters but sons of the gods. How would that be possible? Very simple the gods were not gods. The were the traitors sons of Seth. They begat Nephilims …the monsters who became terrific giants who devoured humans, animals and later themselves.
Hercules Samson, Goliath and Nimrod were all giants.