A kimono was a specific type of clothing similar to a bathrobe.
A female bar patron wore a kimono-like garment when she visited a bar in San Francisco in 2285. (Star Trek III: The Search for Spock)
The Species 8472 member representing Valerie Archer changed her Starfleet uniform into a kimono when she went with Commander Chakotay into her living quarters at Terrasphere 8 in 2375. (VOY: "In the Flesh")
The call sheet for "In the Flesh" identifies the garment worn by Archer as a kimono in the scenes 52-54.
The script of TNG: "Haven" described the dress worn by Valeda Innis as a "sheer, silky kimono-like garment".
Costume Designer Bob Ringwood called the uniforms worn by the Romulan Senate guards in Star Trek Nemesis "kimono-meets-toga".