Translation guide
The proper name of a specific American university. In Japanese, it is almost always rendered in katakana as ハーバード大学. There is no native Japanese equivalent.
Referring to Harvard University as an institution.
Standard katakana rendering. Use this in almost all contexts.
He graduated from Harvard University.
Short form, common in casual conversation when the context is clear.
I want to go to Harvard.
Harvard University is in Massachusetts.