Coat of arms of Mauritius
Armiger	Republic of Mauritius
Adopted	1906
Shield	Quarterly azure and or: (1) A lymphad or; (2) 3 palm trees vert; (3) A key in pale the wards downwards gules; (4) From the base a pile, and in chief a mullet argent
Supporters	On the dexter side, a dodo per bend sinister embattled gules and argent and on the sinister side, a sambar deer per bend embattled argent and gules, each supporting a sugar cane erect proper
Motto	Stella Clavisque Maris Indici "Star and Key of the Indian Ocean"
Earlier version(s)	British Mauritius
Use	1869–1906

The coat of arms of Mauritius are stipulated in the "Mauritius Laws 1990 Vol.2 SCHEDULE (Section 2)". In the lower left quarter is a key and on the right-hand side is a white star, which are referred to in the Latin motto "Stella Clavisque Maris Indici" meaning "Star and Key of the Indian Ocean".

The armorial ensigns and supporters of Mauritius are officially described as:^[1]

(a) for arms-

1. Quarterly azure and or.
2. In the first quarter a lymphad or.
3. In the second, 3 palm trees vert.
4. In the third, a key in pale the wards downwards gules.
5. In the issuant, from the base a pile, and in chief a mullet argent.

(b) for the supporters-

1. On the dexter side, a dodo per bend sinister embattled gules and argent, and
2. On the sinister side, a sambar deer per bend embattled argent and gules, each supporting a sugar cane erect proper,

(c) with the motto "Stella Clavisque Maris Indici" (lat: Star and Key of the Indian Ocean)

• Azure – Royal Blue (Pantone Reflex Blue)
• Or – Gold (Metallic Gold)
• Vert – Emerald Green (Pantone Green)
• Gules – Warm Red (Pantone 2X)
• Argent – Silver (Metallic Silver)^[1]

• 
  Coat of Arms of Portuguese Mauritius from 1511 to 1557.
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  Coat of Arms of Portuguese Mauritius from 1557 to 1578.
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  Coat of Arms of Portuguese Mauritius from 1578 to 1580.
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  Coat of Arms of Portuguese Mauritius from 1580 to 1598.
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  Coat of Arms of Dutch Mauritius from 1598 to 1665.
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  Coat of Arms of Dutch Mauritius from 1665 to 1672.
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  Coat of Arms of French Mauritius from 1715 to 1792.
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  Coat of Arms of French Mauritius from 1792 to 1804.
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  Coat of Arms of French Mauritius from 1804 to 1810.
• 
  Coat of Arms of British Mauritius from 1810 to 1816.
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  Coat of Arms of British Mauritius from 1816 to 1837.
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  Coat of Arms of British Mauritius from 1837 to 1869.