Cover - USD ($)	12 Months Ended
	Jun. 30, 2025	Sep. 29, 2025	Dec. 31, 2024
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Financial Statement Error Correction [Flag]	false
Entity Interactive Data Current	Yes
ICFR Auditor Attestation Flag	false
Amendment Flag	false
Document Period End Date	Jun. 30, 2025
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Documents Incorporated by Reference [Text Block]	None
Entity Information [Line Items]
Entity Registrant Name	DAMON INC.
Entity Central Index Key	0002000640
Entity File Number	001-42190
Entity Tax Identification Number	00-0000000
Entity Incorporation, State or Country Code	A1
Current Fiscal Year End Date	--06-30
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Public Float			$ 17,355,619
Entity Incorporation, Date of Incorporation	Oct. 17, 2023
Entity Contact Personnel [Line Items]
Entity Address, Address Line One	4601 Canada Way
Entity Address, Address Line Two	Suite #402
Entity Address, City or Town	Burnaby
Entity Address, State or Province	BC
Entity Address, Postal Zip Code	V5G 4X7
Entity Phone Fax Numbers [Line Items]
City Area Code	(236)
Local Phone Number	326-3619
Entity Listings [Line Items]
Title of 12(b) Security	Common Shares
Trading Symbol	DMN
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		19,603,815