Robert Gulden, nicknamed Bob, (March 30, 1948 – November 30, 2022, age 74) was a prominent cave surveyor and cartographer.

From 1976 until his death, Gulden kept the world's best-known database of long and deep caves.

He began keeping the database for which he was best known in 1976, while he was helping to survey the Friars Hole Cave System in West Virginia.

[5] He belonged to a caving club called the Gangsta Mappers,[6] a group of "guerrilla cartographers who remap previously explored caves, but with more care and in greater detail", the New York Times reported in 2004.

[2] Bob's wife Janice Louise preceded him in death.