diff --git a/sigi/apps/eventos/admin.py b/sigi/apps/eventos/admin.py
index 51520a9..bc07fbe 100644
--- a/sigi/apps/eventos/admin.py
+++ b/sigi/apps/eventos/admin.py
@@ -1,6 +1,7 @@
 import datetime
 import pandas as pd
 import time
+from admin_auto_filters.filters import AutocompleteFilter
 from moodle import Moodle
 from typing import Any
 from django.db import models
@@ -37,7 +38,7 @@ from tinymce.models import HTMLField
 from tinymce.widgets import AdminTinyMCE
 from weasyprint import HTML
 from sigi.apps.convenios.models import Convenio
-from sigi.apps.contatos.models import UnidadeFederativa
+from sigi.apps.contatos.models import UnidadeFederativa, Municipio
 from sigi.apps.eventos.models import (
     Checklist,
     Cronograma,
@@ -105,6 +106,13 @@ class NumeroParticipantesFilter(admin.SimpleListFilter):
             ).filter(diferenca__gte=10)
 
 
+class MicrorregiaoFilter(AutocompleteFilter):
+    title = _("Microrregião")
+    parameter_name = "casa__municipio__microrregiao__codigo_ibge__exact"
+    field_name = "microrregiao"
+    rel_model = Municipio
+
+
 class SolicitacaoResource(LabeledResourse):
     act_vigente = Field(column_name="ACT vigente")
     data_termino_act = Field(column_name="término vigência ACT")
@@ -414,6 +422,7 @@ class SolicitacaoAdmin(AsciifyQParameter, CartExportMixin, admin.ModelAdmin):
         "itemsolicitado__tipo_evento",
         "status",
         ActVigenteFilter,
+        MicrorregiaoFilter,
     )
     list_select_related = ["casa", "casa__municipio", "casa__municipio__uf"]
     search_fields = (
@@ -469,6 +478,11 @@ class SolicitacaoAdmin(AsciifyQParameter, CartExportMixin, admin.ModelAdmin):
     inlines = (ItemSolicitadoInline, AnexoSolicitacaoInline)
     autocomplete_fields = ("casa",)
 
+    def lookup_allowed(self, lookup, value):
+        return super().lookup_allowed(lookup, value) or (
+            lookup == MicrorregiaoFilter.parameter_name
+        )
+
     def get_queryset(self, request):
         acts = Convenio.objects.filter(
             casa_legislativa=OuterRef("casa"),