diff --git a/tests/unittests/README.md b/tests/unittests/README.md
index f22d98e5d8..23ab2a9587 100644
--- a/tests/unittests/README.md
+++ b/tests/unittests/README.md
@@ -97,7 +97,7 @@ make term
 ```
 
 ## Writing unit tests
-### File struture
+### File structure
 RIOT uses [*embUnit*](http://embunit.sourceforge.net/) for unit testing.
 All unit tests are organized in ``tests/unittests`` and can be built module-wise, if needed.
 For each module there exists a ``tests-<modulename>/tests-<modulename>.h`` file, at least one C file in ``tests-<modulename>/`` and a ``tests-<modulename>/Makefile``.
diff --git a/tests/unittests/tests-bloom/tests-bloom-sets.h b/tests/unittests/tests-bloom/tests-bloom-sets.h
index f2d7d20b95..c8c6177bb3 100644
--- a/tests/unittests/tests-bloom/tests-bloom-sets.h
+++ b/tests/unittests/tests-bloom/tests-bloom-sets.h
@@ -573,7 +573,7 @@ const char* const A[1000] = {"osteopathic"
 ,"culilawan"
 ,"trigonocephalous"
 ,"Musca"
-,"donnot"
+,"donot"
 ,"lobose"
 ,"Suevian"
 ,"Frenchwise"
diff --git a/tests/unittests/tests-fib/tests-fib.c b/tests/unittests/tests-fib/tests-fib.c
index 9fe83118c4..154ee658bb 100644
--- a/tests/unittests/tests-fib/tests-fib.c
+++ b/tests/unittests/tests-fib/tests-fib.c
@@ -464,7 +464,7 @@ static void test_fib_12_get_next_hop_fail(void)
 }
 
 /*
-* @brief get next hop for known destination but unsufficient size for the output
+* @brief get next hop for known destination but insufficient size for the output
 * It is expected to get no next hop and receive -ENOBUFS
 */
 static void test_fib_13_get_next_hop_fail_on_buffer_size(void)
diff --git a/tests/unittests/tests-fib_sr/tests-fib_sr.c b/tests/unittests/tests-fib_sr/tests-fib_sr.c
index 798d1cf418..0af1942cdb 100644
--- a/tests/unittests/tests-fib_sr/tests-fib_sr.c
+++ b/tests/unittests/tests-fib_sr/tests-fib_sr.c
@@ -51,7 +51,7 @@ static fib_table_t test_fib_sr_table;
 
 /*
  * @brief helper function to create source routes.
- *        The enrties are constructed with the given prefix and numbers
+ *        The entries are constructed with the given prefix and numbers
  *        counted from the given count borders (from and to).
  * @param[in] pre prefix string to use
  * @param[in] from starting index to count from
diff --git a/tests/unittests/tests-gnrc_ipv6_nib/tests-gnrc_ipv6_nib-nc.c b/tests/unittests/tests-gnrc_ipv6_nib/tests-gnrc_ipv6_nib-nc.c
index 6c530b53ed..e47c560c32 100644
--- a/tests/unittests/tests-gnrc_ipv6_nib/tests-gnrc_ipv6_nib-nc.c
+++ b/tests/unittests/tests-gnrc_ipv6_nib/tests-gnrc_ipv6_nib-nc.c
@@ -154,7 +154,7 @@ static void test_nib_nc_set__success_duplicate(void)
  * Creates GNRC_IPV6_NIB_NUMOF neighbor cache entries with different addresses
  * and interfaces and then tries to delete one with yet another address.
  * Expected result: There should be still GNRC_IPV6_NIB_NUMOF entries in the
- * neigbor cache
+ * neighbor cache
  */
 static void test_nib_nc_del__unknown(void)
 {
diff --git a/tests/unittests/tests-gnrc_ipv6_nib/tests-gnrc_ipv6_nib-pl.c b/tests/unittests/tests-gnrc_ipv6_nib/tests-gnrc_ipv6_nib-pl.c
index 7cbbaeb816..ed11e0d60e 100644
--- a/tests/unittests/tests-gnrc_ipv6_nib/tests-gnrc_ipv6_nib-pl.c
+++ b/tests/unittests/tests-gnrc_ipv6_nib/tests-gnrc_ipv6_nib-pl.c
@@ -336,7 +336,7 @@ static void test_nib_pl_set__success(void)
  * Creates MAX_NUMOF prefix list entries with different prefix and interfaces
  * and then tries to delete one with yet another prefix and interface.
  * Expected result: There should be still GNRC_IPV6_NIB_NUMOF entries in the
- * neigbor cache
+ * neighbor cache
  */
 static void test_nib_pl_del__unknown(void)
 {
diff --git a/tests/unittests/tests-hashes/tests-hashes-sha256-hmac.c b/tests/unittests/tests-hashes/tests-hashes-sha256-hmac.c
index 48d592fce6..7b75df324d 100644
--- a/tests/unittests/tests-hashes/tests-hashes-sha256-hmac.c
+++ b/tests/unittests/tests-hashes/tests-hashes-sha256-hmac.c
@@ -61,7 +61,7 @@ static void test_hashes_hmac_sha256_hash_sequence(void)
 }
 
 /*
-        The followig testcases are taken from:
+        The following testcases are taken from:
         https://tools.ietf.org/html/rfc4868#section-2.7.1
 */
 
@@ -186,7 +186,7 @@ static void test_hashes_hmac_sha256_ite_hash_sequence(void)
 }
 
 /*
-        The followig testcases are taken from:
+        The following testcases are taken from:
         https://tools.ietf.org/html/rfc4868#section-2.7.1
 */
 
diff --git a/tests/unittests/tests-hashes/tests-hashes-sha3.c b/tests/unittests/tests-hashes/tests-hashes-sha3.c
index dbb41051e0..1422a0da46 100644
--- a/tests/unittests/tests-hashes/tests-hashes-sha3.c
+++ b/tests/unittests/tests-hashes/tests-hashes-sha3.c
@@ -28,7 +28,7 @@
 /**
  * @brief expected SHA3-256 hash for test 01
  *
- * All test values taken from the Keccak code pacakge:
+ * All test values taken from the Keccak code package:
  * https://github.com/gvanas/KeccakCodePackage
  * Files: TestVectors/ShortMsgKAT_SHA3-256.txt, TestVectors/ShortMsgKAT_SHA3-384.txt,
  *        TestVectors/ShortMsgKAT_SHA3-512.txt