Manfred "KILI" Kielnhofer (born 28 January 1967 in Haslach an der Mühl) is an Austrian painter, sculptor, designer and photographer.

Due to his antisemitic statements in connection with the planned vaccination to contain the COVID-19 pandemic, numerous of his works of art were removed from public space.

Drawing on religious and supernatural phenomena, the Guardians of Time are stone statues that are cloaked in hooded robes and situated to seem like they are moving forth in some kind of positive ritual.

[2] In 2009, Kielnhofer developed a new sort of 'act photographs', which involves the construction of a waterplate in his studio, where he can take photos of models sitting or lying down, likely on a mirror.

[3] The Interlux-Chair, Kielnhofers artwork shown at the biennial, was registered in the design-database of the MAK, the Museum for Applied Arts in Vienna.