Mark Sealy OBE (born 1960) is a British curator and cultural historian with a special interest in the relationship of photography to social change, identity politics and human rights.

[2] A recent commissioned project (2013–14) was The Unfinished Conversation, by award-winning documentary-maker John Akomfrah, a film-work on the political life of cultural theorist Stuart Hall.

[8] Sealy has been a guest lecturer at the Royal College of Art and many other institutions in England and abroad,[9][10] and has participated in many national and international conferences, including on the "Historical Perspectives on International Curatorial Debates of the 1980s and 1990s" panel at the Shades of Black conference, Duke University (Durham, North Carolina), in April 2001,[11] the 2011 symposium on "post-racial imaginaries" held at the University of Westminster by the journal darkmatter,[12] "Reframing the Moment: Legacies of the 1982 Blk Art Group" (curated by Sonia Boyce and Keith Piper) in 2012 at Wolverhampton Polytechnic,[13] and has been on judging juries for such prestigious awards as the World Press Photo competition.

[19][20] Sealy curated the 18th FotoFest Biennial (8 March–19 April 2020), Houston's city-wide annual photography festival, marking the first time that the event has focused its attention on the continent and its diaspora.

'The history of visual culture and making images is being investigated, torn apart, blown up in the air, and made new,' Sealy has explained, citing this exhibition as playing a part in this process.