A honeymoon, an Earth ritual, is the traditional trip taken by a newlywed couple to celebrate their marriage, and presumably, consummate it.

The song "Come Fly with Me", a favorite tune of Vic Fontaine's, featured the lyrics, "You just say the words, and we'll beat the birds down to Acapulco Bay; It's perfect, for a flying honeymoon – they say...." (DS9: "His Way")

The women on the Taresian homeworld infect alien males with a retrovirus that transform them into male Taresians. The newly-transformed males then marry three of the Taresian women. On their honeymoon, the women then kill the male for his genetic material. (VOY: "Favorite Son")

In 1947, Faith Garland's mother suggested that she and her fiancé, Jeff Carlson, visit Niagara Falls for their honeymoon. (DS9: "Little Green Men")

Roy Ritterhouse created an artwork entitled "Honeymoon on Andoris" for the science fiction magazine Incredible Tales. (DS9: "Far Beyond the Stars")

In 2369, honeymoon was a word which appeared on a medical analysis, seen by Doctor Julian Bashir, who was infected by the aphasia virus at the time. (DS9: "Babel")

In 2374, Worf proposed that he and Jadzia Dax undertake a hiking trip across Vulcan's Forge for their honeymoon, or possibly venture on a mountain climbing expedition on Andoria. Dax rejected the ideas as entailing too much suffering. Jadzia instead consulted the Starfleet Bureau of Information in locating a more suitable planet. She wound up finding and suggesting Casperia Prime, to which Worf finally conceded. (DS9: "Change of Heart")

Michael Eddington and Rebecca Sullivan were never able to take a honeymoon, as Eddington was captured by Starfleet and later killed by the Jem'Hadar. (DS9: "Blaze of Glory")

In common with Worf, Kasidy Yates also considered the mountains of Andoria as a site for a honeymoon, with Benjamin Sisko in 2375. (DS9: "Change of Heart", "Strange Bedfellows")

Before she succumbed to radiation poisoning, the biomimetic Tom Paris told the duplicate B'Elanna Torres he had already selected a place for their honeymoon: the Graystone Hotel. (VOY: "Course: Oblivion")

After using it to participate in a stellar race, the real Tom Paris and B'Elanna Torres took the Delta Flyer out for their honeymoon. (VOY: "Drive")

In 2379, William T. Riker and Deanna Troi planned on having their honeymoon at the Opal Sea on Betazed. Their honeymoon, however, was delayed when the USS Enterprise-E was diverted to Romulus, while en route to Betazed. (Star Trek Nemesis)