Mac Ahlberg
- AKA: Bert Thorn, Bert Torn
- Birthday: June 12, 1931
- Astrology: Gemini
- Birthplace: Stockholm, Sweden
- Years Active: 1974
- Ethnicity: n/a
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- Tattoo: n/a
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- Frequent partners: Brigitte Maier, Jim Steffe, Kim Frank, Marie Forsa, Rune Hallberg
- Website: n/a