The Disasters Emergency Committee has set up a Ukraine humanitarian appeal, which is helping to provide food, water, shelter, healthcare and protection to people fleeing the conflict.
Mae'r Pwyllgor Argyfwng Trychinebau wedi sefydlu apêl ddyngarol Wcráin, sy'n helpu i ddarparu bwyd, dŵr, llety, gofal iechyd a diogelwch i bobl sy'n ffoi rhag y rhyfel.