diff --git a/internal/tender/form.go b/internal/tender/form.go
index a80c453..386c773 100644
--- a/internal/tender/form.go
+++ b/internal/tender/form.go
@@ -58,6 +58,7 @@ type SearchForm struct {
 	SubmissionDateTo        *int64   `query:"submission_date_to" valid:"optional"`
 	Source                  []string `query:"source" valid:"optional"`
 	BuyerOrganizationID     *string  `query:"buyer_organization_id" valid:"optional"`
+	NoticePublicationID     *string  `query:"notice_publication_id" valid:"optional"`
 	Languages               []string `query:"languages" valid:"optional"`
 	OnlyActiveDeadlines     bool     `query:"-" valid:"optional"`
 	Language                *string  `query:"lang" valid:"optional"`
diff --git a/internal/tender/handler.go b/internal/tender/handler.go
index db45636..92e6196 100644
--- a/internal/tender/handler.go
+++ b/internal/tender/handler.go
@@ -158,6 +158,7 @@ func (h *TenderHandler) Delete(c echo.Context) error {
 // @Param submission_date_to query number false "Submission deadline to (Unix timestamp, seconds)"
 // @Param languages query []string false "Filter by languages (comma-separated)"
 // @Param buyer_organization_id query string false "Filter by buyer organization ID"
+// @Param notice_publication_id query string false "Filter by TED notice publication ID"
 // @Param documents_scraped query bool false "When true, only tenders whose contract_folder_id has documents in MinIO"
 // @Param limit query int false "Number of items per page (default: 20, max: 100)"
 // @Param offset query int false "Number of items to skip (default: 0). Prefer cursor for deep pages."
@@ -229,6 +230,7 @@ func (h *TenderHandler) Search(c echo.Context) error {
 // @Param submission_date_to query number false "Submission deadline to (Unix seconds)"
 // @Param languages query []string false "Filter by languages (comma-separated)"
 // @Param buyer_organization_id query string false "Filter by buyer organization ID"
+// @Param notice_publication_id query string false "Filter by TED notice publication ID"
 // @Param documents_scraped query bool false "When true, only tenders whose contract_folder_id has documents in MinIO"
 // @Param limit query int false "Number of items per page (default: 20, max: 100)"
 // @Param offset query int false "Number of items to skip (default: 0). Prefer cursor for deep pages."
@@ -312,6 +314,7 @@ func (h *TenderHandler) GetPublicTenders(c echo.Context) error {
 // @Param submission_date_to query number false "Submission deadline to (Unix seconds)"
 // @Param languages query []string false "Filter by languages (comma-separated)"
 // @Param buyer_organization_id query string false "Filter by buyer organization ID"
+// @Param notice_publication_id query string false "Filter by TED notice publication ID"
 // @Param documents_scraped query bool false "When true, only tenders whose contract_folder_id has documents in MinIO"
 // @Param limit query int false "Number of items per page (default: 20, max: 100)"
 // @Param offset query int false "Number of items to skip (default: 0). Prefer cursor for deep pages."
diff --git a/internal/tender/repository.go b/internal/tender/repository.go
index abe4559..9ff17eb 100644
--- a/internal/tender/repository.go
+++ b/internal/tender/repository.go
@@ -1062,6 +1062,12 @@ func (r *tenderRepository) buildSearchFilter(form *SearchForm) bson.M {
 		filter["buyer_organization.id"] = *form.BuyerOrganizationID
 	}
 
+	if form.NoticePublicationID != nil {
+		if noticePublicationID := strings.TrimSpace(*form.NoticePublicationID); noticePublicationID != "" {
+			filter["notice_publication_id"] = noticePublicationID
+		}
+	}
+
 	if len(form.Languages) > 0 {
 		filter["notice_language_code"] = bson.M{"$in": dedupeNonEmptyStrings(form.Languages)}
 	}