Otto Porter scored 19 points and the Hoyas handed the Fighting Irish their third loss in four games.
Notre Dame recorded season lows in points, field goal percentage (35 percent) and assists (11).
The Irish (15-4, 3-3 Big East) went on long stretches without scoring in both halves, while Georgetown (13-4, 3-3) shot 53 percent from the field in South Bend, Ind.
JOIN THE DISCUSSION | Register here
We welcome comments. Please keep them civil, short and to the point. ALL CAPS, spam, obscene, profane, abusive and off topic comments will be deleted. Repeat offenders will be blocked. Thanks for taking part — and abiding by these simple rules. A thorough explanation of rules of conduct can be found in our Terms of Service. If you have any questions, including why your comment may not be showing immediately after you submit it, be sure to visit the commenting FAQ.