Popper ya lashe kyaututtuka da girmamawa da yawa a fagen sa, gami da lambar yabo ta Lippincott ta Kungiyar Kimiyyar Siyasa ta Amurka, Kyautar Sonning, Otto Hahn Peace Medal na Kungiyar Majalisar Dinkin Duniya ta Jamus a Berlin da kuma tallafin karatu a Royal Society, British Academy, London School of Economics, King's College London, Darwin College, Cambridge, Austrian Academy of Sciences da Charles University, Prague, Austria. Ya ba shi Babban Kyautar girmamawa a cikin Zinare don Ayyuka ga Jamhuriyar Austria a 1986, da Tarayyar Tarayyar Jamus tare da Babban Star Cross da Sash na Order of Merit, da kuma zaman lafiya na Order le Mérite. Ya sami lambar yabo ta Laureate Award daga Cibiyar Nazarin 'Yan Adam ta Duniya. Ya zama Sarkin Sarauniya Elizabeth II a 1965, kuma an zabe shi a matsayin Fellow na Royal Society a shekarar 1976. An ba shi lambar yabo ta Royal Society, British Academy, London School of Economics, King's College London, Darwin College, Cambridge, Austrian Academy of Sciences da Charles University, Prague, Austria. Ya sami lambar yabo ta Grand Decoration of Hono
Shekara ta 1965