Harold Tom Wilkins (June 1891 – 1960) was a British journalist known for his books on treasure hunting and pseudohistoric claims about Atlantis and South America.

[citation needed] In 1931, Wilkins wrote a detailed description of the mystery of the Mary Celeste for the Quarterly Review.

[7] Wilkins in his Mysteries of Ancient South America (1945) compiled further accounts of similar sightings of "White Indians" in the Amazon Rainforest from the 16th to 19th century by explorers and Jesuits.

The anthropologist John Alden Mason has described Wilkins's research as pseudohistory and noted that most of his statements capable of verification turned out to be incorrect.

[10] His Secret Cities of Old South America was described by The Explorers Club in a review as a "crank book, basing most of its fantastic conclusions on the assumption that Atlantis and Mu did exist...