Bluetooth symbol

An angular rune-like glyph marking a Bluetooth wireless connection.

Also known as: Bluetooth logo, Rune symbol, B symbol

Everyday & digitalEngineering & technicalStandard profile

Meanings

The Bluetooth symbol is a bind rune combining the initials of Harald Bluetooth, the tenth-century Scandinavian king the technology is named after — one of the few interface symbols with a genuine historical derivation.

Common modern usageVerified fact
Indicates that Bluetooth is available, enabled, or that a device is connected over it.
Contexts: Software
Historically documentedDocumented interpretation
Is a bind rune joining the Younger Futhark runes Hagall and Bjarkan — the initials of Harald 'Bluetooth' Gormsson, after whom the technology is named.
Rune forms are medieval; the symbol dates from the 1990s · Contexts: Software
Common modern usageVerified fact
Is a registered trademark of the Bluetooth Special Interest Group, so its use on products is licensed rather than free.
Symbolwise describes the mark and renders an original illustration; it does not reproduce the trademarked artwork.
Contexts: Software

Visual description

A vertical stem crossed by two triangular loops, one meeting it above and one below, forming an angular figure like a B drawn in straight strokes.

Symmetry: none
Orientation: upright

Confidence

IdentityModerate confidence: Moderate confidence because the identity is documented in encyclopedic references, but only a single source has been found so far, but early or supporting evidence is limited.
Historical originLow confidence: Low confidence because the historical origin is documented in encyclopedic references, but only a single source has been found so far, but the regional or cultural match to this specific claim is not precise.
Current useHigh confidence: High confidence because the current use is documented in encyclopedic references, but only a single source has been found so far.
Visual matchHigh confidence: High confidence because the visual match is documented in encyclopedic references, but only a single source has been found so far.

Sources

Bluetooth
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for widely-agreed identity and origin summary, not for contested detail or exact dates.

Last reviewed 2026-07-31

Part of

Interface and connectivity symbols

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Meanings

Common modern usageVerified fact

Indicates that Bluetooth is available, enabled, or that a device is connected over it.

Contexts: Software

Historically documentedDocumented interpretation

Is a bind rune joining the Younger Futhark runes Hagall and Bjarkan — the initials of Harald 'Bluetooth' Gormsson, after whom the technology is named.

Rune forms are medieval; the symbol dates from the 1990s · Contexts: Software

Common modern usageVerified fact

Is a registered trademark of the Bluetooth Special Interest Group, so its use on products is licensed rather than free.

Symbolwise describes the mark and renders an original illustration; it does not reproduce the trademarked artwork.

Contexts: Software

Confidence

IdentityModerate confidence: Moderate confidence because the identity is documented in encyclopedic references, but only a single source has been found so far, but early or supporting evidence is limited.
Historical originLow confidence: Low confidence because the historical origin is documented in encyclopedic references, but only a single source has been found so far, but the regional or cultural match to this specific claim is not precise.
Current useHigh confidence: High confidence because the current use is documented in encyclopedic references, but only a single source has been found so far.
Visual matchHigh confidence: High confidence because the visual match is documented in encyclopedic references, but only a single source has been found so far.