Nazi swastikas and a reference to the New Zealand mosque attacks were sprayed on a school wall in Oxford.
The words “PewDiePie” was sprayed on a back wall of Cheney School in Oxford.
The main gunman, Brenton Tarrant, 28, who killed at least 42 worshippers, had encouraged viewers to “subscribe to PewDiePie” as he livestreamed the massacre at Masjid Al-Noor in Christchurch on Facebook last Friday.
Swedish YouTube celebrity PewDiePie – real name is Felix Kjellberg – condemned the terrorist attacks on the two mosques where at least 50 people were killed.
The hateful graffiti appeared over weekend but was removed by council staff workers, who were accompanied by Thames Valley Police officers, on Sunday morning.
Thames Valley Police have launched an investigation following the incident.
Superintendent Joe Kidman, said: “I deplore the actions of the person or persons responsible for this graffiti and there are no excuses for those who carry out hate crimes.
“Oxford is a tolerant community with strong links between our faith communities.
“This act is not representative of the people of Oxford and it will not be tolerated by Thames Valley Police.”
“We are aware that the awful events in New Zealand will have heightened concerns for many communities.
“As a result officers in Oxford as well as the wider Thames Valley, will be visiting places of worship to reassure all faith communities.”
Tarrant from Australia, was charged with murder last Saturday for massacring at least 42 innocent Muslim worshippers with a shotgun and a semi-automatic assault rifle, including children, women and the elderly.