In the black-and-white photo shows young Suri playing with a child at Moria refugee camp.
Smiling, Suri is wearing her hair in braids with a t-shirt, jeans, and sneakers.
Holmes and Suri spent a few days visiting the camp for Syrian refugees on the Greek island of Lesbos.
The pair spent their time working with volunteers from Artolution, which is a charity that promotes public art initiatives to help healing and positive social change. Holmes was already a global ambassador for the charity.
Another photo posted by Holmes shows her and Suri posing with volunteers in front of a beautiful mural painting.
“Thank you to our #globalambassadorforartolution, @katieholmes212, for your support AND working on the ground with us in Greece, teaching performance to refugees in the Moria Refugee Camp! Showing up and sharing this experience together. Kindness in action,” @artolution captioned the same photo on their page.
Holmes has in the past spoken about Suri's love for charity and big heart.
“My little one is very, very generous and very sensitive,” she said on the Today show in 2015. “So she’s always [saying], ‘Mom, let’s give my old toys to people who need it.’”