diff --git a/internal/app/app.go b/internal/app/app.go
index a2e2b2b..c335f4a 100644
--- a/internal/app/app.go
+++ b/internal/app/app.go
@@ -178,6 +178,13 @@ func (a *App) ReprocessDataset(ctx context.Context, id uuid.UUID) (domain.Datase
 	return a.datasets.Reprocess(ctx, id)
 }
 
+// ReprocessAllDatasets re-enqueues the processing job for every dataset,
+// restarting each one's asynchronous pipeline. It returns how many jobs were
+// enqueued and a per-dataset map of any failures.
+func (a *App) ReprocessAllDatasets(ctx context.Context) (int, map[uuid.UUID]error, error) {
+	return a.datasets.ReprocessAll(ctx)
+}
+
 // Close releases all resources in reverse order of acquisition.
 func (a *App) Close() {
 	if a.rabbit != nil {
diff --git a/internal/cli/reprocess.go b/internal/cli/reprocess.go
index ce0b18b..8213e30 100644
--- a/internal/cli/reprocess.go
+++ b/internal/cli/reprocess.go
@@ -9,19 +9,23 @@ import (
 	"github.com/spf13/cobra"
 )
 
+var reprocessAll bool
+
 var reprocessCmd = &cobra.Command{
-	Use:   "reprocess <dataset-id>",
-	Short: "Re-enqueue the processing job for an uploaded dataset",
+	Use:   "reprocess [dataset-id]",
+	Short: "Re-enqueue the processing job for uploaded datasets",
 	Long: "Re-publish the RabbitMQ message that drives an uploaded dataset's\n" +
 		"asynchronous processing, selecting the right step from its file type\n" +
 		"(vector_with_kato -> parse, vector -> properties, raster -> cog).\n\n" +
-		"Example:\n" +
-		"  gis reprocess 06818b2b-1fc5-47d9-a764-db2d4cb3df75",
-	Args: cobra.ExactArgs(1),
+		"Pass a dataset id to reprocess a single dataset, or --all to reprocess\n" +
+		"every dataset.\n\n" +
+		"Examples:\n" +
+		"  gis reprocess 06818b2b-1fc5-47d9-a764-db2d4cb3df75\n" +
+		"  gis reprocess --all",
+	Args: cobra.MaximumNArgs(1),
 	RunE: func(cmd *cobra.Command, args []string) error {
-		id, err := uuid.Parse(args[0])
-		if err != nil {
-			return fmt.Errorf("invalid dataset id %q: %w", args[0], err)
+		if reprocessAll == (len(args) == 1) {
+			return fmt.Errorf("provide exactly one of <dataset-id> or --all")
 		}
 
 		ctx, cancel := signalContext()
@@ -33,6 +37,28 @@ var reprocessCmd = &cobra.Command{
 		}
 		defer application.Close()
 
+		if reprocessAll {
+			enqueued, failures, err := application.ReprocessAllDatasets(ctx)
+			if err != nil {
+				return err
+			}
+			for id, ferr := range failures {
+				application.Log.Error("failed to re-enqueue dataset processing",
+					"dataset_id", id, "error", ferr)
+			}
+			application.Log.Info("re-enqueued all dataset processing",
+				"enqueued", enqueued, "failed", len(failures))
+			if len(failures) > 0 {
+				return fmt.Errorf("%d of %d datasets failed to re-enqueue", len(failures), enqueued+len(failures))
+			}
+			return nil
+		}
+
+		id, err := uuid.Parse(args[0])
+		if err != nil {
+			return fmt.Errorf("invalid dataset id %q: %w", args[0], err)
+		}
+
 		dataset, err := application.ReprocessDataset(ctx, id)
 		if err != nil {
 			return err
@@ -42,3 +68,7 @@ var reprocessCmd = &cobra.Command{
 		return nil
 	},
 }
+
+func init() {
+	reprocessCmd.Flags().BoolVar(&reprocessAll, "all", false, "reprocess every dataset")
+}
diff --git a/internal/service/dataset.go b/internal/service/dataset.go
index dc65273..a6ee1fb 100644
--- a/internal/service/dataset.go
+++ b/internal/service/dataset.go
@@ -253,6 +253,35 @@ func (s *DatasetService) Reprocess(ctx context.Context, id uuid.UUID) (domain.Da
 	return dataset, nil
 }
 
+// ReprocessAll re-enqueues the processing job for every dataset, restarting each
+// one's asynchronous pipeline from the step appropriate to its file type. It
+// paginates through all datasets and continues past individual failures,
+// returning how many jobs were enqueued and a per-dataset map of any failures.
+func (s *DatasetService) ReprocessAll(ctx context.Context) (enqueued int, failures map[uuid.UUID]error, err error) {
+	failures = make(map[uuid.UUID]error)
+	for offset := 0; ; {
+		summaries, err := s.repo.ListSummaries(ctx, nil, MaxPageSize, offset)
+		if err != nil {
+			return enqueued, failures, err
+		}
+		if len(summaries) == 0 {
+			break
+		}
+		for _, sum := range summaries {
+			if e := s.enqueueProcessing(ctx, domain.Dataset{ID: sum.ID, FileType: sum.FileType}); e != nil {
+				failures[sum.ID] = e
+				continue
+			}
+			enqueued++
+		}
+		if len(summaries) < MaxPageSize {
+			break
+		}
+		offset += len(summaries)
+	}
+	return enqueued, failures, nil
+}
+
 // ExtractProperties reads a plain vector dataset's attribute table and spatial
 // geometry and stores them (the attribute table as a JSON array of row objects
 // in the properties column, the dissolved feature geometry in the geometry