diff --git a/go/analysis/analysis.go b/go/analysis/analysis.go
index e375484..bc58c31 100644
--- a/go/analysis/analysis.go
+++ b/go/analysis/analysis.go
@@ -128,11 +128,13 @@
 	// See comments for ExportObjectFact.
 	ExportPackageFact func(fact Fact)
 
-	// AllPackageFacts returns a new slice containing all package facts in unspecified order.
+	// AllPackageFacts returns a new slice containing all package facts of the analysis's FactTypes
+	// in unspecified order.
 	// WARNING: This is an experimental API and may change in the future.
 	AllPackageFacts func() []PackageFact
 
-	// AllObjectFacts returns a new slice containing all object facts in unspecified order.
+	// AllObjectFacts returns a new slice containing all object facts of the analysis's FactTypes
+	// in unspecified order.
 	// WARNING: This is an experimental API and may change in the future.
 	AllObjectFacts func() []ObjectFact
 
diff --git a/go/analysis/internal/facts/facts.go b/go/analysis/internal/facts/facts.go
index 86f1ce8..dcd4f4d 100644
--- a/go/analysis/internal/facts/facts.go
+++ b/go/analysis/internal/facts/facts.go
@@ -99,10 +99,10 @@
 	s.mu.Unlock()
 }
 
-func (s *Set) AllObjectFacts() []analysis.ObjectFact {
+func (s *Set) AllObjectFacts(filter map[reflect.Type]bool) []analysis.ObjectFact {
 	var facts []analysis.ObjectFact
 	for k, v := range s.m {
-		if k.obj != nil {
+		if k.obj != nil && filter[k.t] {
 			facts = append(facts, analysis.ObjectFact{k.obj, v})
 		}
 	}
@@ -132,10 +132,10 @@
 	s.mu.Unlock()
 }
 
-func (s *Set) AllPackageFacts() []analysis.PackageFact {
+func (s *Set) AllPackageFacts(filter map[reflect.Type]bool) []analysis.PackageFact {
 	var facts []analysis.PackageFact
 	for k, v := range s.m {
-		if k.obj == nil {
+		if k.obj == nil && filter[k.t] {
 			facts = append(facts, analysis.PackageFact{k.pkg, v})
 		}
 	}
diff --git a/go/analysis/internal/facts/facts_test.go b/go/analysis/internal/facts/facts_test.go
index e21a498..c345a12 100644
--- a/go/analysis/internal/facts/facts_test.go
+++ b/go/analysis/internal/facts/facts_test.go
@@ -10,6 +10,7 @@
 	"go/token"
 	"go/types"
 	"os"
+	"reflect"
 	"testing"
 
 	"golang.org/x/tools/go/analysis/analysistest"
@@ -172,3 +173,52 @@
 	}
 	return pkgs[0].Types, nil
 }
+
+type otherFact struct {
+	S string
+}
+
+func (f *otherFact) String() string { return fmt.Sprintf("otherFact(%s)", f.S) }
+func (f *otherFact) AFact()         {}
+
+func TestFactFilter(t *testing.T) {
+	files := map[string]string{
+		"a/a.go": `package a; type A int`,
+	}
+	dir, cleanup, err := analysistest.WriteFiles(files)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer cleanup()
+
+	pkg, err := load(dir, "a")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	obj := pkg.Scope().Lookup("A")
+	s, err := facts.Decode(pkg, func(string) ([]byte, error) { return nil, nil })
+	if err != nil {
+		t.Fatal(err)
+	}
+	s.ExportObjectFact(obj, &myFact{"good object fact"})
+	s.ExportPackageFact(&myFact{"good package fact"})
+	s.ExportObjectFact(obj, &otherFact{"bad object fact"})
+	s.ExportPackageFact(&otherFact{"bad package fact"})
+
+	filter := map[reflect.Type]bool{
+		reflect.TypeOf(&myFact{}): true,
+	}
+
+	pkgFacts := s.AllPackageFacts(filter)
+	wantPkgFacts := `[{package a ("a") myFact(good package fact)}]`
+	if got := fmt.Sprintf("%v", pkgFacts); got != wantPkgFacts {
+		t.Errorf("AllPackageFacts: got %v, want %v", got, wantPkgFacts)
+	}
+
+	objFacts := s.AllObjectFacts(filter)
+	wantObjFacts := "[{type a.A int myFact(good object fact)}]"
+	if got := fmt.Sprintf("%v", objFacts); got != wantObjFacts {
+		t.Errorf("AllObjectFacts: got %v, want %v", got, wantObjFacts)
+	}
+}
diff --git a/go/analysis/unitchecker/unitchecker.go b/go/analysis/unitchecker/unitchecker.go
index 87c3160..2ed2749 100644
--- a/go/analysis/unitchecker/unitchecker.go
+++ b/go/analysis/unitchecker/unitchecker.go
@@ -42,6 +42,7 @@
 	"log"
 	"os"
 	"path/filepath"
+	"reflect"
 	"sort"
 	"strings"
 	"sync"
@@ -322,6 +323,11 @@
 				return
 			}
 
+			factFilter := make(map[reflect.Type]bool)
+			for _, f := range a.FactTypes {
+				factFilter[reflect.TypeOf(f)] = true
+			}
+
 			pass := &analysis.Pass{
 				Analyzer:          a,
 				Fset:              fset,
@@ -334,10 +340,10 @@
 				Report:            func(d analysis.Diagnostic) { act.diagnostics = append(act.diagnostics, d) },
 				ImportObjectFact:  facts.ImportObjectFact,
 				ExportObjectFact:  facts.ExportObjectFact,
-				AllObjectFacts:    facts.AllObjectFacts,
+				AllObjectFacts:    func() []analysis.ObjectFact { return facts.AllObjectFacts(factFilter) },
 				ImportPackageFact: facts.ImportPackageFact,
 				ExportPackageFact: facts.ExportPackageFact,
-				AllPackageFacts:   facts.AllPackageFacts,
+				AllPackageFacts:   func() []analysis.PackageFact { return facts.AllPackageFacts(factFilter) },
 			}
 
 			t0 := time.Now()