Is 34 Good for Harvard?
If you mean a 3.4 GPA, it is generally low for Harvard, especially if it is unweighted. A 34 GPA is not a normal GPA value. Harvard does not publish a simple GPA cutoff and says there is no formula for admission, but academic accomplishment is important and admitted students are usually extremely strong academically.
The realistic answer
Students who search for 34 and Harvard usually mean 3.4. A 3.4 can be a good GPA in general, but Harvard is one of the most selective colleges in the world. For that specific target, 3.4 is usually not competitive unless there are exceptional circumstances, very hard courses, a major upward trend, or truly standout achievements.
That does not mean you are forbidden to apply. It means Harvard should be treated as a reach, not a likely option.
What can help
Course rigor, essays, recommendations, activities, leadership, awards, and personal context all matter. If your GPA is lower than the typical Harvard applicant, the rest of the application has to be unusually compelling.
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