diff --git a/sigi/apps/casas/admin.py b/sigi/apps/casas/admin.py
index 7cd039e..de91b80 100644
--- a/sigi/apps/casas/admin.py
+++ b/sigi/apps/casas/admin.py
@@ -308,9 +308,9 @@ class OrgaoAdmin(ImageCroppingMixin, BaseModelAdmin):
     actions = ['adicionar_casas', ]
     inlines = (TelefonesInline, PresidenteInline, FuncionariosInline,
                ConveniosInline, ServicoInline, OcorrenciaInline,)
-    list_display = ('nome', 'get_uf', 'get_gerentes', 'get_convenios',
+    list_display = ('sigla', 'nome', 'get_uf', 'get_gerentes', 'get_convenios',
                     'get_servicos')
-    list_display_links = ('nome',)
+    list_display_links = ('sigla', 'nome',)
     list_filter = ('tipo', ('gerentes_interlegis', GerentesInterlegisFilter),
                    'municipio__uf__nome', ConvenioFilter, ServicoFilter,
                    'inclusao_digital',)
@@ -318,7 +318,7 @@ class OrgaoAdmin(ImageCroppingMixin, BaseModelAdmin):
     queryset = queryset_ascii
     fieldsets = (
         (None, {
-            'fields': ('tipo', 'nome', 'cnpj', 'num_parlamentares',
+            'fields': ('tipo', 'nome', 'sigla', 'cnpj', 'num_parlamentares',
                        'gerentes_interlegis')
         }),
         (_(u'Endereço'), {
@@ -336,10 +336,10 @@ class OrgaoAdmin(ImageCroppingMixin, BaseModelAdmin):
     )
     raw_id_fields = ('municipio',)
     readonly_fields = ['num_parlamentares', 'gerentes_interlegis',]
-    search_fields = ('search_text', 'cnpj', 'bairro', 'logradouro',
+    search_fields = ('search_text', 'sigla', 'cnpj', 'bairro', 'logradouro',
                      'cep', 'municipio__nome', 'municipio__uf__nome',
                      'municipio__codigo_ibge', 'pagina_web', 'observacoes')
-    filter_horizontal = ('gerentes_interlegis',)
+    # filter_horizontal = ('gerentes_interlegis',)
 
     def get_uf(self, obj):
         return obj.municipio.uf.nome
diff --git a/sigi/apps/casas/migrations/0018_orgao_sigla.py b/sigi/apps/casas/migrations/0018_orgao_sigla.py
new file mode 100644
index 0000000..fcc6370
--- /dev/null
+++ b/sigi/apps/casas/migrations/0018_orgao_sigla.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('casas', '0017_auto_20210416_0841'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='orgao',
+            name='sigla',
+            field=models.CharField(max_length=30, verbose_name='sigla do \xf3rg\xe3o', blank=True),
+            preserve_default=True,
+        ),
+    ]
diff --git a/sigi/apps/casas/models.py b/sigi/apps/casas/models.py
index b9ce584..4a63403 100644
--- a/sigi/apps/casas/models.py
+++ b/sigi/apps/casas/models.py
@@ -47,10 +47,13 @@ class Orgao(models.Model):
         max_length=60,
         help_text=_(u'Exemplo: <em>Câmara Municipal de Pains</em>.')
     )
-
+    sigla = models.CharField(
+        _(u"sigla do órgão"),
+        max_length=30,
+        blank=True
+    )
     # Guarda um campo para ser usado em buscas em caixa baixa e sem acento
     search_text = SearchField(field_names=['nome'])
-    # search_text.projeto_filter = True
     tipo = models.ForeignKey(
         TipoOrgao,
         on_delete=models.PROTECT,