Cover - shares	9 Months Ended
	Sep. 30, 2022	Nov. 14, 2022
Cover [Abstract]
Entity Registrant Name	COSMOS HOLDINGS INC.
Entity Central Index Key	0001474167
Document Type	10-Q
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Document Period End Date	Sep. 30, 2022
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2022
Entity Common Stock Shares Outstanding		83,797,481
Document Quarterly Report	true
Entity File Number	000-54436
Entity Incorporation State Country Code	NV
Entity Tax Identification Number	27-0611758
Entity Interactive Data Current	Yes
Entity Address Address Line 1	141 West Jackson Blvd, Suite 4236
Entity Address Address Line 2	Suite 4236
Entity Address City Or Town	Chicago
Entity Address State Or Province	IL
Entity Address Postal Zip Code	60604
City Area Code	312
Local Phone Number	536-3102
Security 12b Title	Common Stock, $.001 par value
Trading Symbol	COSM
Security Exchange Name	NASDAQ
Document Transition Report	false