diff --git a/.last-branch b/.last-branch
index f43e141..0390956 100644
--- a/.last-branch
+++ b/.last-branch
@@ -1 +1 @@
-v20260104-12-reports-object-name-job-name-columns-fix
+v20260104-13-reports-jobs-deduplicate-job-name-column
diff --git a/containers/backupchecks/src/templates/main/reports.html b/containers/backupchecks/src/templates/main/reports.html
index af0f7b5..b3c8f7f 100644
--- a/containers/backupchecks/src/templates/main/reports.html
+++ b/containers/backupchecks/src/templates/main/reports.html
@@ -196,16 +196,43 @@
           if (items[j].key === key) return items[j].label || key;
         }
       }
+      // Backwards compatibility: object_name was used for job name in older configs.
+      if (key === 'job_name') {
+        for (var i2 = 0; i2 < reportColumnsMeta.groups.length; i2++) {
+          var items2 = reportColumnsMeta.groups[i2].items || [];
+          for (var j2 = 0; j2 < items2.length; j2++) {
+            if (items2[j2].key === 'object_name') return items2[j2].label || 'Job name';
+          }
+        }
+        return 'Job name';
+      }
       return key;
     }
 
+    function uniqPreserveOrder(arr) {
+      var out = [];
+      var seen = {};
+      (arr || []).forEach(function (k) {
+        var key = String(k);
+        if (seen[key]) return;
+        seen[key] = true;
+        out.push(k);
+      });
+      return out;
+    }
+
+    function normalizeCols(arr) {
+      if (!Array.isArray(arr)) return [];
+      return uniqPreserveOrder(arr.map(function (k) { return (k === 'object_name') ? 'job_name' : k; }));
+    }
+
     function defaultColsFor(view) {
       if (reportColumnsMeta && reportColumnsMeta.defaults && reportColumnsMeta.defaults[view]) {
-        return reportColumnsMeta.defaults[view].slice();
+        return normalizeCols(reportColumnsMeta.defaults[view].slice());
       }
       // hard fallback
-      if (view === 'snapshot') return ['object_name','customer_name','job_id','job_name','status','run_at'];
-      return ['object_name','total_runs','success_count','warning_count','failed_count','missed_count','success_rate'];
+      if (view === 'snapshot') return ['job_name','customer_name','job_id','status','run_at'];
+      return ['job_name','total_runs','success_count','warning_count','failed_count','missed_count','success_rate'];
     }
 
     function selectedColsFor(view) {
@@ -218,9 +245,9 @@
       }
       if (hasView && Array.isArray(cols)) {
         // If an empty list is saved, keep it empty.
-        return cols;
+        return normalizeCols(cols);
       }
-      if (cols && cols.length) return cols;
+      if (cols && cols.length) return normalizeCols(cols);
       return defaultColsFor(view);
     }
 
@@ -337,7 +364,8 @@
         return (
           '<tr>' +
             cols.map(function (k) {
-              return td(r[k], (k === 'run_at' || k === 'reviewed_at' || k === 'job_id' || k === 'run_id' || k === 'customer_name'));
+              var val = (k === 'job_name') ? ((r.job_name !== null && r.job_name !== undefined && String(r.job_name).length) ? r.job_name : r.object_name) : r[k];
+              return td(val, (k === 'run_at' || k === 'reviewed_at' || k === 'job_id' || k === 'run_id' || k === 'customer_name'));
             }).join('') +
           '</tr>'
         );
diff --git a/containers/backupchecks/src/templates/main/reports_new.html b/containers/backupchecks/src/templates/main/reports_new.html
index 23f9648..27e9b67 100644
--- a/containers/backupchecks/src/templates/main/reports_new.html
+++ b/containers/backupchecks/src/templates/main/reports_new.html
@@ -288,6 +288,102 @@
       };
     }
 
+    function uniqPreserveOrder(arr) {
+      var out = [];
+      var seen = {};
+      (arr || []).forEach(function (k) {
+        var key = String(k);
+        if (seen[key]) return;
+        seen[key] = true;
+        out.push(k);
+      });
+      return out;
+    }
+
+    function normalizeJobNameColumns() {
+      // Merge legacy object_name into job_name (single logical column: "Job name").
+      if (repColsMeta && repColsMeta.groups) {
+        repColsMeta.groups.forEach(function (g) {
+          var items = g.items || [];
+          var jobItem = null;
+          var objItem = null;
+
+          items.forEach(function (it) {
+            if (!it) return;
+            if (it.key === 'job_name') jobItem = it;
+            if (it.key === 'object_name') objItem = it;
+          });
+
+          if (objItem && !jobItem) {
+            // convert object_name into job_name
+            objItem.key = 'job_name';
+            objItem.label = 'Job name';
+            jobItem = objItem;
+            objItem = null;
+          }
+
+          if (jobItem) {
+            jobItem.label = 'Job name';
+            // Merge views if object_name existed in the same group
+            if (objItem && Array.isArray(objItem.views)) {
+              var merged = (Array.isArray(jobItem.views) ? jobItem.views.slice() : []);
+              objItem.views.forEach(function (v) {
+                if (merged.indexOf(v) < 0) merged.push(v);
+              });
+              jobItem.views = merged;
+            }
+          }
+
+          // Remove any remaining object_name items
+          g.items = (g.items || []).filter(function (it) { return it && it.key !== 'object_name'; });
+
+          // Remove duplicate job_name items within the same group
+          var seenJob = false;
+          g.items = (g.items || []).filter(function (it) {
+            if (!it) return false;
+            if (it.key !== 'job_name') return true;
+            if (!seenJob) {
+              seenJob = true;
+              it.label = 'Job name';
+              return true;
+            }
+            return false;
+          });
+        });
+
+        // Ensure job_name only appears once across all groups.
+        var seenGlobalJob = false;
+        repColsMeta.groups.forEach(function (g2) {
+          g2.items = (g2.items || []).filter(function (it2) {
+            if (!it2) return false;
+            if (it2.key !== 'job_name') return true;
+            if (!seenGlobalJob) {
+              seenGlobalJob = true;
+              it2.label = 'Job name';
+              return true;
+            }
+            return false;
+          });
+        });
+      }
+
+      // Defaults: replace object_name -> job_name and de-duplicate
+      if (repColsMeta && repColsMeta.defaults) {
+        ['summary', 'snapshot', 'jobs'].forEach(function (v) {
+          var d = repColsMeta.defaults[v];
+          if (!Array.isArray(d)) return;
+          repColsMeta.defaults[v] = uniqPreserveOrder(d.map(function (k) { return (k === 'object_name') ? 'job_name' : k; }));
+        });
+      }
+
+      // Selected: replace object_name -> job_name and de-duplicate
+      ['summary', 'snapshot', 'jobs'].forEach(function (v) {
+        if (repColsSelected[v] === null || typeof repColsSelected[v] === 'undefined') return;
+        if (!Array.isArray(repColsSelected[v])) return;
+        repColsSelected[v] = uniqPreserveOrder(repColsSelected[v].map(function (k) { return (k === 'object_name') ? 'job_name' : k; }));
+      });
+    }
+
 
     // --- Job filters (backup software / backup type) ---
     var jobFiltersMeta = window.__jobFiltersMeta || null;
@@ -610,6 +706,7 @@
       if (repColsMeta) {
         showColsLoading(false);
         clearColsError();
+        normalizeJobNameColumns();
         ensureDefaultsFromMeta();
         qs('rep_cols_tab_summary').addEventListener('click', function () { setColsView('summary'); });
         qs('rep_cols_tab_snapshot').addEventListener('click', function () { setColsView('snapshot'); });
@@ -632,6 +729,7 @@
           }
 
           repColsMeta = res.json || null;
+          normalizeJobNameColumns();
           ensureDefaultsFromMeta();
 
           // bind tabs once metadata is ready
diff --git a/docs/changelog.md b/docs/changelog.md
index d9a0372..3aafd86 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -289,6 +289,15 @@
 - Fixed column selection behavior so an explicitly saved empty selection stays empty (defaults are only applied when the view has no configured selection).
 - Updated the raw data table and HTML export to show a clear “No columns selected” message when all columns are disabled, instead of still rendering default data.
 
+---
+
+## v20260104-13-reports-jobs-deduplicate-job-name-column
+
+- Unified `object_name` and `job_name` into a single logical column labeled "Job name".
+- Removed duplicate "Job name" entries from available and selected column lists in Summary, Snapshot, and Jobs views.
+- Added migration logic to automatically clean up existing report configurations containing duplicate job name columns.
+- Ensured report rendering strictly follows the selected columns; when no columns are selected, no table data is shown.
+
 ================================================================================================================================================
 
 ## v0.1.15