diff --git a/gerrit-elasticsearch/src/main/java/com/google/gerrit/elasticsearch/ElasticIndexModule.java b/gerrit-elasticsearch/src/main/java/com/google/gerrit/elasticsearch/ElasticIndexModule.java
index 7868443..2d04e11 100644
--- a/gerrit-elasticsearch/src/main/java/com/google/gerrit/elasticsearch/ElasticIndexModule.java
+++ b/gerrit-elasticsearch/src/main/java/com/google/gerrit/elasticsearch/ElasticIndexModule.java
@@ -26,6 +26,7 @@
 import com.google.gerrit.server.index.account.AccountIndex;
 import com.google.gerrit.server.index.change.ChangeIndex;
 import com.google.gerrit.server.index.group.GroupIndex;
+import com.google.gerrit.server.index.project.ProjectIndex;
 import com.google.inject.AbstractModule;
 import com.google.inject.Provides;
 import com.google.inject.Singleton;
@@ -75,6 +76,10 @@
         new FactoryModuleBuilder()
             .implement(GroupIndex.class, ElasticGroupIndex.class)
             .build(GroupIndex.Factory.class));
+    install(
+        new FactoryModuleBuilder()
+            .implement(ProjectIndex.class, ElasticProjectIndex.class)
+            .build(ProjectIndex.Factory.class));
 
     install(new IndexModule(threads));
     if (singleVersions == null) {
diff --git a/gerrit-elasticsearch/src/main/java/com/google/gerrit/elasticsearch/ElasticProjectIndex.java b/gerrit-elasticsearch/src/main/java/com/google/gerrit/elasticsearch/ElasticProjectIndex.java
new file mode 100644
index 0000000..c983a44
--- /dev/null
+++ b/gerrit-elasticsearch/src/main/java/com/google/gerrit/elasticsearch/ElasticProjectIndex.java
@@ -0,0 +1,215 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.elasticsearch;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.Lists;
+import com.google.gerrit.elasticsearch.ElasticMapping.MappingProperties;
+import com.google.gerrit.index.QueryOptions;
+import com.google.gerrit.index.Schema;
+import com.google.gerrit.index.query.DataSource;
+import com.google.gerrit.index.query.Predicate;
+import com.google.gerrit.index.query.QueryParseException;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gerrit.server.config.GerritServerConfig;
+import com.google.gerrit.server.config.SitePaths;
+import com.google.gerrit.server.index.IndexUtils;
+import com.google.gerrit.server.index.project.ProjectField;
+import com.google.gerrit.server.index.project.ProjectIndex;
+import com.google.gerrit.server.project.ProjectCache;
+import com.google.gerrit.server.project.ProjectState;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gwtorm.server.OrmException;
+import com.google.gwtorm.server.ResultSet;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.assistedinject.Assisted;
+import io.searchbox.client.JestResult;
+import io.searchbox.core.Bulk;
+import io.searchbox.core.Bulk.Builder;
+import io.searchbox.core.Search;
+import io.searchbox.core.search.sort.Sort;
+import io.searchbox.core.search.sort.Sort.Sorting;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+import org.eclipse.jgit.lib.Config;
+import org.elasticsearch.index.query.QueryBuilder;
+import org.elasticsearch.search.builder.SearchSourceBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ElasticProjectIndex extends AbstractElasticIndex<Project.NameKey, ProjectState>
+    implements ProjectIndex {
+  static class ProjectMapping {
+    MappingProperties projects;
+
+    ProjectMapping(Schema<ProjectState> schema) {
+      this.projects = ElasticMapping.createMapping(schema);
+    }
+  }
+
+  static final String PROJECTS = "projects";
+  static final String PROJECTS_PREFIX = PROJECTS + "_";
+
+  private static final Logger log = LoggerFactory.getLogger(ElasticProjectIndex.class);
+
+  private final ProjectMapping mapping;
+  private final Provider<ProjectCache> projectCache;
+
+  @Inject
+  ElasticProjectIndex(
+      @GerritServerConfig Config cfg,
+      SitePaths sitePaths,
+      Provider<ProjectCache> projectCache,
+      JestClientBuilder clientBuilder,
+      @Assisted Schema<ProjectState> schema) {
+    super(cfg, sitePaths, schema, clientBuilder, PROJECTS_PREFIX);
+    this.projectCache = projectCache;
+    this.mapping = new ProjectMapping(schema);
+  }
+
+  @Override
+  public void replace(ProjectState projectState) throws IOException {
+    Bulk bulk =
+        new Bulk.Builder()
+            .defaultIndex(indexName)
+            .defaultType(PROJECTS)
+            .addAction(insert(PROJECTS, projectState))
+            .refresh(true)
+            .build();
+    JestResult result = client.execute(bulk);
+    if (!result.isSucceeded()) {
+      throw new IOException(
+          String.format(
+              "Failed to replace project %s in index %s: %s",
+              projectState.getProject().getName(), indexName, result.getErrorMessage()));
+    }
+  }
+
+  @Override
+  public DataSource<ProjectState> getSource(Predicate<ProjectState> p, QueryOptions opts)
+      throws QueryParseException {
+    return new QuerySource(p, opts);
+  }
+
+  @Override
+  protected Builder addActions(Builder builder, Project.NameKey nameKey) {
+    return builder.addAction(delete(PROJECTS, nameKey));
+  }
+
+  @Override
+  protected String getMappings() {
+    ImmutableMap<String, ProjectMapping> mappings = ImmutableMap.of("mappings", mapping);
+    return gson.toJson(mappings);
+  }
+
+  @Override
+  protected String getId(ProjectState projectState) {
+    return projectState.getProject().getName();
+  }
+
+  private class QuerySource implements DataSource<ProjectState> {
+    private final Search search;
+    private final Set<String> fields;
+
+    QuerySource(Predicate<ProjectState> p, QueryOptions opts) throws QueryParseException {
+      QueryBuilder qb = queryBuilder.toQueryBuilder(p);
+      fields = IndexUtils.projectFields(opts);
+      SearchSourceBuilder searchSource =
+          new SearchSourceBuilder()
+              .query(qb)
+              .from(opts.start())
+              .size(opts.limit())
+              .fields(Lists.newArrayList(fields));
+
+      Sort sort = new Sort(ProjectField.NAME.getName(), Sorting.ASC);
+      sort.setIgnoreUnmapped();
+
+      search =
+          new Search.Builder(searchSource.toString())
+              .addType(PROJECTS)
+              .addIndex(indexName)
+              .addSort(ImmutableList.of(sort))
+              .build();
+    }
+
+    @Override
+    public int getCardinality() {
+      return 10;
+    }
+
+    @Override
+    public ResultSet<ProjectState> read() throws OrmException {
+      try {
+        List<ProjectState> results = Collections.emptyList();
+        JestResult result = client.execute(search);
+        if (result.isSucceeded()) {
+          JsonObject obj = result.getJsonObject().getAsJsonObject("hits");
+          if (obj.get("hits") != null) {
+            JsonArray json = obj.getAsJsonArray("hits");
+            results = Lists.newArrayListWithCapacity(json.size());
+            for (int i = 0; i < json.size(); i++) {
+              results.add(toProjectState(json.get(i)));
+            }
+          }
+        } else {
+          log.error(result.getErrorMessage());
+        }
+        final List<ProjectState> r = Collections.unmodifiableList(results);
+        return new ResultSet<ProjectState>() {
+          @Override
+          public Iterator<ProjectState> iterator() {
+            return r.iterator();
+          }
+
+          @Override
+          public List<ProjectState> toList() {
+            return r;
+          }
+
+          @Override
+          public void close() {
+            // Do nothing.
+          }
+        };
+      } catch (IOException e) {
+        throw new OrmException(e);
+      }
+    }
+
+    @Override
+    public String toString() {
+      return search.toString();
+    }
+
+    private ProjectState toProjectState(JsonElement json) {
+      JsonElement source = json.getAsJsonObject().get("_source");
+      if (source == null) {
+        source = json.getAsJsonObject().get("fields");
+      }
+
+      Project.NameKey nameKey =
+          new Project.NameKey(
+              source.getAsJsonObject().get(ProjectField.NAME.getName()).getAsString());
+      return projectCache.get().get(nameKey);
+    }
+  }
+}