SDN List Meaning: Specially Designated Nationals
In brief: The SDN list is an OFAC list of specially designated nationals and blocked persons, and it can appear in sanctions screening for internationally exposed clients.
Key points
- SDN is a US sanctions term, not a UK list label.
- UK firms should review SDN hits in context, especially where there is a US nexus.
- A possible SDN match should not be cleared without identifier review and notes.
What does SDN list mean?
SDN means Specially Designated Nationals. The SDN list is maintained by OFAC in the United States and includes people and entities subject to US blocking sanctions.
Why it appears in UK screening
Many sanctions screening tools include OFAC data because clients, payments, owners, and counterparties can have international exposure. A UK firm may see an SDN hit even when its primary obligation is to comply with UK sanctions.
How to review a possible SDN match
Check identifiers, aliases, location, ownership, control, and whether there is a US nexus. Also check relevant UK sanctions sources before making a decision.
What to keep
Keep the result, identifier review, UK/US relevance analysis, decision, and escalation route.
This guide is general information for UK regulated firms. Sanctions change quickly, so always check the relevant official list or get specialist advice before making a client decision.