diff --git a/src/archive/tar/writer.go b/src/archive/tar/writer.go
index 0d68d47129..c9237c8329 100644
--- a/src/archive/tar/writer.go
+++ b/src/archive/tar/writer.go
@@ -37,7 +37,7 @@ func NewWriter(w io.Writer) *Writer { return &Writer{w: w} }
 // Flush finishes writing the current file's block padding.
 // The current file must be fully written before Flush can be called.
 //
-// Deprecated: This is unecessary as the next call to WriteHeader or Close
+// Deprecated: This is unnecessary as the next call to WriteHeader or Close
 // will implicitly flush out the file's padding.
 func (tw *Writer) Flush() error {
 	if tw.err != nil {
diff --git a/src/cmd/compile/internal/ssa/looprotate.go b/src/cmd/compile/internal/ssa/looprotate.go
index c5b768264d..d9cba9e9b0 100644
--- a/src/cmd/compile/internal/ssa/looprotate.go
+++ b/src/cmd/compile/internal/ssa/looprotate.go
@@ -62,7 +62,7 @@ func loopRotate(f *Func) {
 				break
 			}
 			nextb := f.Blocks[nextIdx]
-			if nextb == p { // original loop precedessor is next
+			if nextb == p { // original loop predecessor is next
 				break
 			}
 			if loopnest.b2l[nextb.ID] != loop { // about to leave loop
diff --git a/src/cmd/compile/internal/syntax/branches.go b/src/cmd/compile/internal/syntax/branches.go
index 5fecdd6551..2fd97a4a67 100644
--- a/src/cmd/compile/internal/syntax/branches.go
+++ b/src/cmd/compile/internal/syntax/branches.go
@@ -131,7 +131,7 @@ type targets struct {
 // blockBranches processes a block's body starting at start and returns the
 // list of unresolved (forward) gotos. parent is the immediately enclosing
 // block (or nil), ctxt provides information about the enclosing statements,
-// and lstmt is the labeled statement asociated with this block, or nil.
+// and lstmt is the labeled statement associated with this block, or nil.
 func (ls *labelScope) blockBranches(parent *block, ctxt targets, lstmt *LabeledStmt, start src.Pos, body []Stmt) []*BranchStmt {
 	b := &block{parent: parent, start: start, lstmt: lstmt}
 
diff --git a/src/cmd/internal/objabi/symkind.go b/src/cmd/internal/objabi/symkind.go
index ac91824d17..ea180d0bf8 100644
--- a/src/cmd/internal/objabi/symkind.go
+++ b/src/cmd/internal/objabi/symkind.go
@@ -52,7 +52,7 @@ const (
 	SBSS
 	// Statically data that is initially all 0s and does not contain pointers
 	SNOPTRBSS
-	// Thread-local data that is initally all 0s
+	// Thread-local data that is initially all 0s
 	STLSBSS
 	// Debugging data
 	SDWARFINFO
diff --git a/src/cmd/link/internal/ld/lib.go b/src/cmd/link/internal/ld/lib.go
index c7f14b3e04..3207bdb837 100644
--- a/src/cmd/link/internal/ld/lib.go
+++ b/src/cmd/link/internal/ld/lib.go
@@ -746,7 +746,7 @@ func genhash(ctxt *Link, lib *Library) {
 	// To compute the hash of a package, we hash the first line of
 	// __.PKGDEF (which contains the toolchain version and any
 	// GOEXPERIMENT flags) and the export data (which is between
-	// the first two occurences of "\n$$").
+	// the first two occurrences of "\n$$").
 
 	pkgDefBytes := make([]byte, atolwhex(arhdr.size))
 	_, err = io.ReadFull(f, pkgDefBytes)
diff --git a/src/cmd/link/internal/ld/link.go b/src/cmd/link/internal/ld/link.go
index 857957afb0..3a9314ec42 100644
--- a/src/cmd/link/internal/ld/link.go
+++ b/src/cmd/link/internal/ld/link.go
@@ -129,7 +129,7 @@ const (
 	// consulted to avoid bugs where a symbol is put on a list twice.
 	AttrOnList
 	// AttrLocal marks symbols that are only visible within the module
-	// (exectuable or shared library) being linked. Only relevant when
+	// (executable or shared library) being linked. Only relevant when
 	// dynamically linking Go code.
 	AttrLocal
 	// AttrReflectMethod marks certain methods from the reflect package that
diff --git a/src/database/sql/convert.go b/src/database/sql/convert.go
index 4983181fe7..3c387fb25c 100644
--- a/src/database/sql/convert.go
+++ b/src/database/sql/convert.go
@@ -204,7 +204,7 @@ func driverArgs(ci driver.Conn, ds *driverStmt, args []interface{}) ([]driver.Na
 		}
 	}
 
-	// Check the length of arguments after convertion to allow for omitted
+	// Check the length of arguments after conversion to allow for omitted
 	// arguments.
 	if want != -1 && len(nvargs) != want {
 		return nil, fmt.Errorf("sql: expected %d arguments, got %d", want, len(nvargs))
diff --git a/src/database/sql/sql_test.go b/src/database/sql/sql_test.go
index 644769442e..bcf0887d0e 100644
--- a/src/database/sql/sql_test.go
+++ b/src/database/sql/sql_test.go
@@ -3390,7 +3390,7 @@ func (c *nvcConn) CheckNamedValue(nv *driver.NamedValue) error {
 	case Out:
 		switch ov := v.Dest.(type) {
 		default:
-			return errors.New("unkown NameValueCheck OUTPUT type")
+			return errors.New("unknown NameValueCheck OUTPUT type")
 		case *string:
 			*ov = "from-server"
 			nv.Value = "OUT:*string"
diff --git a/src/encoding/asn1/asn1_test.go b/src/encoding/asn1/asn1_test.go
index c9eda4069d..355ff8c41c 100644
--- a/src/encoding/asn1/asn1_test.go
+++ b/src/encoding/asn1/asn1_test.go
@@ -1015,7 +1015,7 @@ func TestNull(t *testing.T) {
 		t.Fatal(err)
 	}
 	if !bytes.Equal(NullBytes, marshaled) {
-		t.Errorf("Expected Marshal of NullRawValue to yeild %x, got %x", NullBytes, marshaled)
+		t.Errorf("Expected Marshal of NullRawValue to yield %x, got %x", NullBytes, marshaled)
 	}
 
 	unmarshaled := RawValue{}
diff --git a/src/internal/cpu/cpu.go b/src/internal/cpu/cpu.go
index 6a8e23d425..3090adbbe4 100644
--- a/src/internal/cpu/cpu.go
+++ b/src/internal/cpu/cpu.go
@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // Package cpu implements processor feature detection
-// used by the Go standard libary.
+// used by the Go standard library.
 package cpu
 
 var X86 x86
diff --git a/src/math/big/calibrate_test.go b/src/math/big/calibrate_test.go
index 11ce064c15..2b96e74a65 100644
--- a/src/math/big/calibrate_test.go
+++ b/src/math/big/calibrate_test.go
@@ -32,7 +32,7 @@ func TestCalibrate(t *testing.T) {
 	if *calibrate {
 		computeKaratsubaThresholds()
 
-		// compute basicSqrThreshold where overhead becomes neglible
+		// compute basicSqrThreshold where overhead becomes negligible
 		minSqr := computeSqrThreshold(10, 30, 1, 3)
 		// compute karatsubaSqrThreshold where karatsuba is faster
 		maxSqr := computeSqrThreshold(300, 500, 10, 3)
diff --git a/src/testing/testing.go b/src/testing/testing.go
index 93297b2dca..579a30ca1e 100644
--- a/src/testing/testing.go
+++ b/src/testing/testing.go
@@ -252,7 +252,7 @@ var (
 	chatty               = flag.Bool("test.v", false, "verbose: print additional output")
 	count                = flag.Uint("test.count", 1, "run tests and benchmarks `n` times")
 	coverProfile         = flag.String("test.coverprofile", "", "write a coverage profile to `file`")
-	matchList            = flag.String("test.list", "", "list tests, examples, and benchmarch maching `regexp` then exit")
+	matchList            = flag.String("test.list", "", "list tests, examples, and benchmarks matching `regexp` then exit")
 	match                = flag.String("test.run", "", "run only tests and examples matching `regexp`")
 	memProfile           = flag.String("test.memprofile", "", "write a memory profile to `file`")
 	memProfileRate       = flag.Int("test.memprofilerate", 0, "set memory profiling `rate` (see runtime.MemProfileRate)")