<p>Many places, such as Collegeboard, people, forums and whatnot say you need 3 subject tests when applying to Harvard, however, I recently went to an Ivy League presentation locally in the area and the Harvard representative said that you only need 2 Subject Tests. The Harvard website also states that you only need 2 Subject Tests...</p>
<p>From the Harvard website: "Candidates may complete testing (SAT or ACT with writing and two SAT Subject Tests) by using the January SAT or the February ACT dates, but we urge you to have your testing completed by the December date. Please note that in order for your application to be considered complete, your official test scores must submitted directly to Harvard by the testing agency on your behalf."</p>
<p>So it is 2 or 3? :/</p>