Yes. Bluetooth wireless technology is named after Harald Bluetooth, a Danish king from the Viking Age. The royal connection is part of the technology's documented naming history.
The Bluetooth Special Interest Group explains that the name was proposed as a temporary project label in 1996. Harald's association with unification provided an analogy for connecting the computing and mobile industries. Denmark's Ministry of Foreign Affairs independently confirms the namesake.
The historical reference also appears in the logo, which combines runic forms of Harald's initials. Bluetooth was supposed to receive a different commercial name, but the temporary name caught on and remained.
Bluetooth's name and logo refer to Harald Bluetooth. The name began as a metaphor for bringing technologies and industries together.
Bluetooth Special Interest Group
The Bluetooth SIG identifies Harald Bluetooth as the namesake and describes the temporary project name proposed in 1996 as an analogy for industry unification.
Based on: Bluetooth Special Interest Group
Ministry of Foreign Affairs of Denmark
Denmark's official national website explicitly states that Bluetooth wireless technology is named after King Harald Bluetooth of Denmark.
Based on: Ministry of Foreign Affairs of Denmark
Bluetooth Special Interest Group
The Bluetooth SIG explains that its logo combines two Younger Futhark runes representing Harald's initials.
Based on: Bluetooth Special Interest Group
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