Hannah Alper (born 2002 or 2003) is a Canadian[2] activist, blogger, and journalist who was active in those fields before her teens.

That approach shaped me into the type of person I am today, someone who's also passionate about community[2] In July 2012,[1] Alper launched her blog—Call Me Hannah—where she spoke about causes important to her: animal welfare, habitat destruction, and the natural environment;[5] within the year, her blog had received 100,000 page-views.

By mid-2020, she had given "more than 400 speeches", and was elected co-president of the B'nai B'rith Youth Organization's Lake Ontario Region chapter.

[2] As a teen journalist,[2] Alper has written for The Huffington Post[5] and interviewed Malala Yousafzai,[7] Craig Kielburger, Spencer West,[4] Jian Ghomeshi, and Severn Cullis-Suzuki.

[1] Released on 1 November 2017, Alper's first book—Momentus: Small Acts, Big Change— is a collection of interviews with 19 of her role models (including Singh, Yousafzai, and Lily Collins), hoping to empower youth to take action and make the changes they want to see in the world.