Born on January 15
January 15: Capricorn Zodiac & Famous People
The zodiac sign for January 15 is Capricorn. Famous people born on January 15 include Martin Luther King Jr., Kirin Kiki — 2 notable figures in all, plus this day’s birthstone, birth flower and birthday rarity.
Civil Rights Leader · 1929–1968
Actress · 1943–2018
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How many people share the January 15 birthday?
~930 thousand in the U.S., ~22 million worldwide
※ Rough estimate assuming birthdays are evenly distributed (published population figures).
The January 15 birthday profile
Zodiac
Capricorn
Birthstone
Garnet
Birth flower
Carnation
Birth color
Crimson
Rarity
#340/366
Weekday
Which day?
💎 Garnet (Truth, Friendship & Loyalty) · 🌸 Carnation (Pure & Deep Love, Motherly Love)
Capricorn traits
General traits of the sign January 15 falls under (12/22–1/19) — not a per-day personality or fortune.
Element
Earth
Modality
Cardinal
Ruling planet
Saturn
Disciplined and responsible, building success step by step.
Associated strengths: Responsible, Disciplined, Patient, Ambitious
January 15's decan: 3rd decan (20°–30°, ~January 10–January 19) — sub-ruler Mercury (Virgo)
Each sign splits into three 10° decans; the 1st is the sign itself, the 2nd and 3rd are sub-ruled by the same-element signs (a traditional rule; the boundary shifts ±1 day by year).
※ Traditional Western astrology attributes — for cultural interest, not a scientific claim.
What happened on January 15
- Koshōgatsu (Little New Year) — Marks the end of New Year festivities; eating red-bean porridge.
🎂 Born on January 15?
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