- John (Herschel, Jr.)born 1921, U.S. astronaut and politician: first U.S. orbital space flight 1962; U.S. senator 1975–99.
- a male or female given name.
- John. born 1921, US astronaut and politician. The first American to orbit the earth (Feb, 1962), he later became a senator (1975–99) and in 1998 returned to space at the age of 77