Harvard Online’s Top Courses of 2025

[Harvard Online]

CS50, Data Science for Business, and more!

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✔️ Did your favorites make the list? 2026 may be swiftly approaching, but we’re reflecting on 2025 with a list of our most popular courses of the past year. While our course offerings are as vast and unique as the community of learners who enroll in them, several are clear standouts amongst the rest. Take a look below to see if our list includes any of the courses you’ve taken, and read our blog post to see the full list and get some inspiration for courses to take in the new year. Read the Blog CS50's Introduction to Computer Science “I gained not only programming skills but also a lot of friends around the globe. Surprisingly, those friends I met [in CS50] made me realize that there's a hidden potential in me.” - Melissa S. Health Care Strategy "I thought this was an amazing course with extremely relevant content.” - Michael A. Save 20% thru Dec. 31st with code HOLIDAY25 American Government: Constitutional Foundations "[Completing this course] feels like I have finally achieved something." - Aaharsh G. Data Science for Business “This course gave me a clear perspective: data science isn’t just technical—it’s a powerful decision-making tool for managers.” - James K. Save 20% thru Dec. 31st with code HOLIDAY25 Managing Happiness “I loved every bit of the course, so much to learn and unlearn, plenty of eye openers and bulb on moments and never a dull session!” - Megha J. Strategy Execution for Public Leadership “[The course] equipped me with practical skills to enhance decision-making and drive impact across my area of work and beyond.” - Roxana H. Save 20% thru Dec. 31st with code HOLIDAY25 Welcome in 2026 with our newest courses:   Develop a systematic approach to leadership that helps you drive progress with Adaptive Leadership. Enrollment for the first public cohort closes January 22nd at 11:59 PM ET! Learn how to implement tools and frameworks to bring powerful ideas to life in Innovation Strategy. Click here to enroll in the exclusive beta cohort by January 15th at 11:59 PM ET. Developed by leading Harvard faculty and brought to life with insights from award-winning celebrities, Power Skills for Career Growth courses emphasize skills development and practical strategies to tackle the real challenges you face. Enrollment is now open! *Discount code valid until December 31st, 2025 at 11:59pm EST. Discount code valid only on the following courses: Adaptive Leadership, Innovation Strategy, Data Science for Business, Data Science Principles, Data Privacy and Technology, Open Innovation, Innovations in Teamwork for Health Care, Digital Health, Health Care Economics, Health Care Strategy, Reducing Racial Disparities in Health Care, Financial Analysis and Valuation for Lawyers, Big Data for Social Good, Make Better Decisions, and Strategy Execution for Public Leadership. Not available on any course included in the Power Skills for Career Growth Certificate of Specialization. Subject to availability. Cannot be combined with any other discounts.  All rights reserved. You are receiving this because you registered for one of our courses or signed up to receive emails. Harvard Online 114 Mount Auburn Street Cambridge, MA, 02138, US View in Your Browser Manage Preferences Unsubscribe