In Genesis, Ham is the son of Noah traditionally presented as the ancestor of the Canaanites.
Genesis 10 lists Ham’s sons as Cush, Mizraim, Put, and Canaan. Canaan is therefore identified within Ham’s genealogical line, and the chapter connects that family line with the peoples and regions known to the biblical authors. Ham is one of Noah’s three sons, alongside Shem and Japheth.
The genealogy is often called the Table of Nations. It is a biblical account of peoples and territories, not a modern genetic classification or an objective map of population history. Modern readers should also distinguish the text’s genealogy from later interpretations that attempted to attach racial hierarchies to Noah’s family.
The question asks for the father in the Genesis genealogy, not Canaan himself. Canaan is Ham’s son, while Ham is Noah’s son. That family relationship makes Ham the single answer.