For the R&B singer, see Mya (singer).

MYA is an acronym used by geologists and paleontologists for "Million Years Ago".

The Burmese language (ISO 639 alpha-3, mya)

Similar abbreviations

• TYA: Thousand years ago
• BYA: Billion Years Ago (10⁹ years)¹
• kYA: kiloYears Ago (1 kY = 1,000 years)
• GYA: GigaYears Ago (1 GY = 10⁹ years)

The proper SI units for these are the kiloyear (ka) and gigayear (Ga).

¹ BYA uses the short scale billion (10⁹), not the long scale billion (10¹²). This potential for confusion makes it less universal than GYA.

See also

• Ma: Mega-annum
• BP: Before Present
• CE: Common Era (equivalent to AD/Anno Domini)
• BCE: Before Common Era (equivalent to BC/Before Christ)