diff --git a/src/applications/pholio/query/PholioMockQuery.php b/src/applications/pholio/query/PholioMockQuery.php
--- a/src/applications/pholio/query/PholioMockQuery.php
+++ b/src/applications/pholio/query/PholioMockQuery.php
@@ -9,6 +9,7 @@
   private $ids;
   private $phids;
   private $authorPHIDs;
+  private $projectPHIDs;
   private $statuses;
 
   private $needCoverFiles;
@@ -31,6 +32,11 @@
     return $this;
   }
 
+  public function withProjectPHIDs(array $project_phids) {
+    $this->projectPHIDs = $project_phids;
+    return $this;
+  }
+
   public function withStatuses(array $statuses) {
     $this->statuses = $statuses;
     return $this;
@@ -62,8 +68,9 @@
 
     $data = queryfx_all(
       $conn_r,
-      'SELECT * FROM %T %Q %Q %Q',
+      'SELECT * FROM %T r %Q %Q %Q %Q',
       $table->getTableName(),
+      $this->buildJoinsClause($conn_r),
       $this->buildWhereClause($conn_r),
       $this->buildOrderClause($conn_r),
       $this->buildLimitClause($conn_r));
@@ -85,6 +92,21 @@
     return $mocks;
   }
 
+  private function buildJoinsClause ($conn_r) {
+    $joins = array();
+
+    if ($this->projectPHIDs) {
+      $joins[] = qsprintf(
+        $conn_r,
+        'JOIN edge e ON e.src = r.phid');
+    }
+    $joins = implode(' ', $joins);
+
+    return $joins;
+  }
+
+
+
   private function buildWhereClause(AphrontDatabaseConnection $conn_r) {
     $where = array();
 
@@ -111,6 +133,13 @@
         $this->authorPHIDs);
     }
 
+    if ($this->projectPHIDs) {
+      $where[] = qsprintf(
+        $conn_r,
+        'e.dst in (%Ls)',
+        $this->projectPHIDs);
+    }
+
     if ($this->statuses) {
       $where[] = qsprintf(
         $conn_r,
diff --git a/src/applications/pholio/query/PholioMockSearchEngine.php b/src/applications/pholio/query/PholioMockSearchEngine.php
--- a/src/applications/pholio/query/PholioMockSearchEngine.php
+++ b/src/applications/pholio/query/PholioMockSearchEngine.php
@@ -17,6 +17,9 @@
       'authorPHIDs',
       $this->readUsersFromRequest($request, 'authors'));
     $saved->setParameter(
+      'projectPHIDs',
+      $this->readPHIDsFromRequest($request, 'projects'));
+    $saved->setParameter(
       'statuses',
       $request->getStrList('status'));
 
@@ -29,6 +32,7 @@
       ->needImages(true)
       ->needTokenCounts(true)
       ->withAuthorPHIDs($saved->getParameter('authorPHIDs', array()))
+      ->withProjectPHIDs($saved->getParameter('projectPHIDs', array()))
       ->withStatuses($saved->getParameter('statuses', array()));
 
     return $query;
@@ -44,6 +48,12 @@
       ->withPHIDs($phids)
       ->execute();
 
+    $project_phids = $saved_query->getParameter('projectPHIDs', array());
+    $project_names = id(new PhabricatorHandleQuery())
+      ->setViewer($this->requireViewer())
+      ->withPHIDs($project_phids)
+      ->execute();
+
     $statuses = array(
       '' => pht('Any Status'),
       'closed' => pht('Closed'),
@@ -60,6 +70,12 @@
           ->setLabel(pht('Authors'))
           ->setValue($author_handles))
       ->appendChild(
+        id(new AphrontFormTokenizerControl())
+          ->setDatasource('/typeahead/common/projects/')
+          ->setName('projects')
+          ->setLabel(pht('Projects'))
+          ->setValue($project_names))
+      ->appendChild(
         id(new AphrontFormSelectControl())
           ->setLabel(pht('Status'))
           ->setName('status')