The Ukrainian diaspora emerged as a crucial and proactive force in responding to the crisis following the Russian military attack on Ukraine in February 2022, playing a pivotal role in various aspects of humanitarian aid and support efforts. The Ukrainian diaspora was quick and efficient, mobilising resources, both financial and organisational, to provide immediate assistance to Ukrainian refugees who sought shelter in different parts of the world, particularly in European countries. Through establishing numerous organisations and collaborations with international entities, the diaspora engaged in activities such as humanitarian aid, legal assistance, healthcare provisions, educational support and social integration initiatives for displaced Ukrainians. The report on the Role of Ukrainian Diaspora in Crisis Response, Future Return and Reconstruction of Ukraine: Case Study from Germany, Czech Republic and Poland aims to analyse the activities of Ukrainian diaspora organisations and migrant communities in the three destination countries as well as demonstrate the diaspora’s role as a cornerstone for shaping a hopeful and prosperous future for Ukraine. The report was completed by Dr. Valeria Lazarenko (PhD) and edited by the project implementation team.