The surname of Dick and Nicole in Tender Is the Night is Diver.
Dick Diver is Richard Diver, a promising young psychiatrist and Yale alumnus. Nicole Diver, born Nicole Warren, is his wealthy patient before becoming his wife. Together they appear as a glamorous expatriate couple living on the French Riviera, where their elegant social world conceals serious personal and psychological strain.
The novel traces Dick’s professional promise and subsequent decline, including his growing dependence on alcohol and his loss of confidence. Nicole’s own history is central to the story: she has suffered severe trauma and receives psychiatric care before marrying Dick. Their relationship begins within that unequal doctor-patient situation, which becomes increasingly complicated as the marriage develops.
Fitzgerald based aspects of Dick and Nicole on himself and his wife, Zelda Fitzgerald, though the fictional story is not a straightforward biography. The Diver marriage eventually breaks down. Nicole gains independence, divorces Dick, and marries Tommy Barban, while Dick’s career and life become increasingly isolated.
The surname can be confused with Fitzgerald’s other characters, especially Jay Gatsby, Daisy Buchanan, and Nick Carraway, none of whom belongs to the Diver family.