diff --git a/misc/chrome/gophertool/popup.html b/misc/chrome/gophertool/popup.html
index 97404062761..ad42a3847c7 100644
--- a/misc/chrome/gophertool/popup.html
+++ b/misc/chrome/gophertool/popup.html
@@ -15,7 +15,7 @@
 <a href="#" url="https://golang.org/pkg/">pkg</a> id/name:</small>
 <form style='margin: 0' id='navform'><nobr><input id="inputbox" size=10 tabindex=1 /><input type="submit" value="go" /></nobr></form>
 <small>Also: <a href="#" url="https://build.golang.org">buildbots</a>
-<a href="#" url="https://github.com/golang/go">Github</a>
+<a href="#" url="https://github.com/golang/go">GitHub</a>
 </small>
 </body>
 </html>
diff --git a/src/cmd/go/internal/vcs/vcs.go b/src/cmd/go/internal/vcs/vcs.go
index 9feffe07656..91485f6f745 100644
--- a/src/cmd/go/internal/vcs/vcs.go
+++ b/src/cmd/go/internal/vcs/vcs.go
@@ -1176,7 +1176,7 @@ func expand(match map[string]string, s string) string {
 // and import paths referring to a fully-qualified importPath
 // containing a VCS type (foo.com/repo.git/dir)
 var vcsPaths = []*vcsPath{
-	// Github
+	// GitHub
 	{
 		pathPrefix: "github.com",
 		regexp:     lazyregexp.New(`^(?P<root>github\.com/[A-Za-z0-9_.\-]+/[A-Za-z0-9_.\-]+)(/[A-Za-z0-9_.\-]+)*$`),
diff --git a/src/crypto/md5/md5_test.go b/src/crypto/md5/md5_test.go
index 282ba1b8592..c0ac0971c46 100644
--- a/src/crypto/md5/md5_test.go
+++ b/src/crypto/md5/md5_test.go
@@ -157,7 +157,7 @@ func TestBlockGeneric(t *testing.T) {
 // Tests for unmarshaling hashes that have hashed a large amount of data
 // The initial hash generation is omitted from the test, because it takes a long time.
 // The test contains some already-generated states, and their expected sums
-// Tests a problem that is outlined in Github issue #29541
+// Tests a problem that is outlined in GitHub issue #29541
 // The problem is triggered when an amount of data has been hashed for which
 // the data length has a 1 in the 32nd bit. When casted to int, this changes
 // the sign of the value, and causes the modulus operation to return a
diff --git a/src/crypto/sha1/sha1_test.go b/src/crypto/sha1/sha1_test.go
index 681e928de25..c3e6010af12 100644
--- a/src/crypto/sha1/sha1_test.go
+++ b/src/crypto/sha1/sha1_test.go
@@ -156,7 +156,7 @@ func TestBlockGeneric(t *testing.T) {
 // Tests for unmarshaling hashes that have hashed a large amount of data
 // The initial hash generation is omitted from the test, because it takes a long time.
 // The test contains some already-generated states, and their expected sums
-// Tests a problem that is outlined in Github issue #29543
+// Tests a problem that is outlined in GitHub issue #29543
 // The problem is triggered when an amount of data has been hashed for which
 // the data length has a 1 in the 32nd bit. When casted to int, this changes
 // the sign of the value, and causes the modulus operation to return a
diff --git a/src/crypto/sha256/sha256_test.go b/src/crypto/sha256/sha256_test.go
index 433c5a4c5e6..a2794b015db 100644
--- a/src/crypto/sha256/sha256_test.go
+++ b/src/crypto/sha256/sha256_test.go
@@ -229,7 +229,7 @@ func TestBlockGeneric(t *testing.T) {
 // Tests for unmarshaling hashes that have hashed a large amount of data
 // The initial hash generation is omitted from the test, because it takes a long time.
 // The test contains some already-generated states, and their expected sums
-// Tests a problem that is outlined in Github issue #29517
+// Tests a problem that is outlined in GitHub issue #29517
 // The problem is triggered when an amount of data has been hashed for which
 // the data length has a 1 in the 32nd bit. When casted to int, this changes
 // the sign of the value, and causes the modulus operation to return a
diff --git a/src/crypto/sha512/sha512_test.go b/src/crypto/sha512/sha512_test.go
index 59998b1d38d..74a13331afd 100644
--- a/src/crypto/sha512/sha512_test.go
+++ b/src/crypto/sha512/sha512_test.go
@@ -835,7 +835,7 @@ func TestBlockGeneric(t *testing.T) {
 // Tests for unmarshaling hashes that have hashed a large amount of data
 // The initial hash generation is omitted from the test, because it takes a long time.
 // The test contains some already-generated states, and their expected sums
-// Tests a problem that is outlined in Github issue #29541
+// Tests a problem that is outlined in GitHub issue #29541
 // The problem is triggered when an amount of data has been hashed for which
 // the data length has a 1 in the 32nd bit. When casted to int, this changes
 // the sign of the value, and causes the modulus operation to return a