diff --git a/defaults.go b/defaults.go
index 18de400d..cdcd8288 100644
--- a/defaults.go
+++ b/defaults.go
@@ -125,7 +125,7 @@ var Defaults Option = func(cfg *Config) error {
 }
 
 // FallbackDefaults applies default options to the libp2p node if and only if no
-// other relevent options have been applied. will be appended to the options
+// other relevant options have been applied. will be appended to the options
 // passed into New.
 var FallbackDefaults Option = func(cfg *Config) error {
 	for _, def := range defaults {
diff --git a/p2p/host/basic/basic_host_test.go b/p2p/host/basic/basic_host_test.go
index acc1db85..5e980f89 100644
--- a/p2p/host/basic/basic_host_test.go
+++ b/p2p/host/basic/basic_host_test.go
@@ -363,7 +363,7 @@ func TestProtoDowngrade(t *testing.T) {
 
 	h1.Network().ConnsToPeer(h2.ID())[0].Close()
 
-	time.Sleep(time.Millisecond * 50) // allow notifications to propogate
+	time.Sleep(time.Millisecond * 50) // allow notifications to propagate
 	h1.RemoveStreamHandler("/testing/1.0.0")
 	h1.SetStreamHandler("/testing", func(s network.Stream) {
 		connectedOn <- s.Protocol()
diff --git a/p2p/net/mock/interface.go b/p2p/net/mock/interface.go
index 57861bf1..16dcfcfe 100644
--- a/p2p/net/mock/interface.go
+++ b/p2p/net/mock/interface.go
@@ -51,7 +51,7 @@ type Mocknet interface {
 	UnlinkNets(network.Network, network.Network) error
 
 	// LinkDefaults are the default options that govern links
-	// if they do not have thier own option set.
+	// if they do not have their own option set.
 	SetLinkDefaults(LinkOptions)
 	LinkDefaults() LinkOptions
 
diff --git a/p2p/net/mock/mock_net.go b/p2p/net/mock/mock_net.go
index 832d7c25..5b75c399 100644
--- a/p2p/net/mock/mock_net.go
+++ b/p2p/net/mock/mock_net.go
@@ -286,7 +286,7 @@ func (mn *mocknet) UnlinkNets(n1, n2 network.Network) error {
 	return mn.UnlinkPeers(n1.LocalPeer(), n2.LocalPeer())
 }
 
-// get from the links map. and lazily contruct.
+// get from the links map. and lazily construct.
 func (mn *mocknet) linksMapGet(p1, p2 peer.ID) map[*link]struct{} {
 
 	l1, found := mn.links[p1]
diff --git a/p2p/protocol/identify/id.go b/p2p/protocol/identify/id.go
index f44716b2..1cfffa57 100644
--- a/p2p/protocol/identify/id.go
+++ b/p2p/protocol/identify/id.go
@@ -475,7 +475,7 @@ func HasConsistentTransport(a ma.Multiaddr, green []ma.Multiaddr) bool {
 // IdentifyWait returns a channel which will be closed once
 // "ProtocolIdentify" (handshake3) finishes on given conn.
 // This happens async so the connection can start to be used
-// even if handshake3 knowledge is not necesary.
+// even if handshake3 knowledge is not necessary.
 // Users **MUST** call IdentifyWait _after_ IdentifyConn
 func (ids *IDService) IdentifyWait(c network.Conn) <-chan struct{} {
 	ids.currmu.Lock()
diff --git a/p2p/protocol/identify/id_test.go b/p2p/protocol/identify/id_test.go
index 4bbf91b9..dedf9a09 100644
--- a/p2p/protocol/identify/id_test.go
+++ b/p2p/protocol/identify/id_test.go
@@ -160,7 +160,7 @@ func testHasPublicKey(t *testing.T, h host.Host, p peer.ID, shouldBe ic.PubKey)
 }
 
 // TestIDServiceWait gives the ID service 1s to finish after dialing
-// this is becasue it used to be concurrent. Now, Dial wait till the
+// this is because it used to be concurrent. Now, Dial wait till the
 // id service is done.
 func TestIDService(t *testing.T) {
 	oldTTL := peerstore.RecentlyConnectedAddrTTL
diff --git a/p2p/test/backpressure/backpressure_test.go b/p2p/test/backpressure/backpressure_test.go
index 92c8f20b..e102f4d1 100644
--- a/p2p/test/backpressure/backpressure_test.go
+++ b/p2p/test/backpressure/backpressure_test.go
@@ -330,7 +330,7 @@ func TestStBackpressureStreamWrite(t *testing.T) {
 	}
 	roundsTime := time.Since(roundsStart)
 
-	// now read continously, while we measure stats.
+	// now read continuously, while we measure stats.
 	stop := make(chan struct{})
 	contStart := time.Now()