• Dagger
• Damasked
• Damiano (Damian)
• Dancetty
• Danish
• Dannebrog ⚐
• David (Saint)
• David (Star of)
• Dawn
• de Gaulle
• de Guerre
• De Haan ⚐
• Deacon
• Death
• Decorated
• Decussata
• Degraded
• Deliverance(!)
• Deluxe
• Democratic Progressive Party of Taiwan ⚐
• Demonic(!)
• Denchée
• Denmark ⚐
• Deportation
• Deposition
• Dérangement
• Derbyshire ⚐
• Devil's Pitchfork
• Devoid
• Devon ⚐
• Dharma
• Diagonal
• Diamond
• Dice
• Diesis
• Diocese of Trenton +
• Disbeliever
• Disc
• Disciple
• Disguised
• Disjointed (Disjoined)
• Dismas
• Dismembered
• Dissenter
• Distinguished Flying
• Distorted
• Divided
• Divine Mercy
• DMeO
• DN
• DNJC
• Doctor
• Dogwood
• Do-it-yourself
• Dolphin
• Dome
• Domingos Martins ⚐
• Dominic (Saint)
• Dominica ⚐
• Dominican Order
• Dominican Republic ⚐
• Donegal ⚐
• Doodle
• Doorpost
• Dorset ⚐
• Double
• Double Beamed
• Double Crescent
• Double Vajra
• Dove
• Dovetail
• DPP Taiwan ⚐
• Dracula
• Dragon
• Draped
• Dream
• Druid
• Dunstable
• Dux Lux Rex Lex

⚐ denotes cross on the flag of a nation or region
+ denotes cross on the emblem of a church or denomination

There are countless more. We are continually updating information on all these crosses and adding more as they become known to us.