diff --git a/.changelog/31352.txt b/.changelog/31352.txt
new file mode 100644
index 00000000000..fea17218a3c
--- /dev/null
+++ b/.changelog/31352.txt
@@ -0,0 +1,7 @@
+```release-note:bug
+resource/aws_keyspaces_keyspace: Correct plan time validation for `name`
+```
+
+```release-note:bug
+resource/aws_keyspaces_table: Correct plan time validation for `keyspace_name`, `table_name` and column names
+```
\ No newline at end of file
diff --git a/internal/service/keyspaces/keyspace.go b/internal/service/keyspaces/keyspace.go
index 29451230630..43d5be382d1 100644
--- a/internal/service/keyspaces/keyspace.go
+++ b/internal/service/keyspaces/keyspace.go
@@ -48,12 +48,9 @@ func ResourceKeyspace() *schema.Resource {
 				Type:     schema.TypeString,
 				ForceNew: true,
 				Required: true,
-				ValidateFunc: validation.All(
-					validation.StringLenBetween(1, 48),
-					validation.StringMatch(
-						regexp.MustCompile(`^[a-zA-Z0-9][a-zA-Z0-9_]{1,47}$`),
-						"The name must consist of alphanumerics and underscores.",
-					),
+				ValidateFunc: validation.StringMatch(
+					regexp.MustCompile(`^[a-zA-Z0-9][a-zA-Z0-9_]{0,47}$`),
+					"The name can have up to 48 characters. It must begin with an alpha-numeric character and can only contain alpha-numeric characters and underscores.",
 				),
 			},
 			names.AttrTags:    tftags.TagsSchema(),
diff --git a/internal/service/keyspaces/table.go b/internal/service/keyspaces/table.go
index ccdd5c30bd2..9585cc916be 100644
--- a/internal/service/keyspaces/table.go
+++ b/internal/service/keyspaces/table.go
@@ -136,12 +136,9 @@ func ResourceTable() *schema.Resource {
 				Type:     schema.TypeString,
 				ForceNew: true,
 				Required: true,
-				ValidateFunc: validation.All(
-					validation.StringLenBetween(1, 48),
-					validation.StringMatch(
-						regexp.MustCompile(`^[a-zA-Z0-9][a-zA-Z0-9_]{1,47}$`),
-						"The name must consist of alphanumerics and underscores.",
-					),
+				ValidateFunc: validation.StringMatch(
+					regexp.MustCompile(`^[a-zA-Z0-9][a-zA-Z0-9_]{0,47}$`),
+					"The keyspace name can have up to 48 characters. It must begin with an alpha-numeric character and can only contain alpha-numeric characters and underscores.",
 				),
 			},
 			"point_in_time_recovery": {
@@ -176,12 +173,9 @@ func ResourceTable() *schema.Resource {
 										Type:     schema.TypeString,
 										Required: true,
 										ForceNew: true,
-										ValidateFunc: validation.All(
-											validation.StringLenBetween(1, 48),
-											validation.StringMatch(
-												regexp.MustCompile(`^[a-z0-9][a-z0-9_]{1,47}$`),
-												"The name must consist of lower case alphanumerics and underscores.",
-											),
+										ValidateFunc: validation.StringMatch(
+											regexp.MustCompile(`^[a-z0-9_]{1,48}$`),
+											"The column name can have up to 48 characters. It can only contain lowercase alpha-numeric characters and underscores.",
 										),
 									},
 									"order_by": {
@@ -201,12 +195,9 @@ func ResourceTable() *schema.Resource {
 									"name": {
 										Type:     schema.TypeString,
 										Required: true,
-										ValidateFunc: validation.All(
-											validation.StringLenBetween(1, 48),
-											validation.StringMatch(
-												regexp.MustCompile(`^[a-z0-9][a-z0-9_]{1,47}$`),
-												"The name must consist of lower case alphanumerics and underscores.",
-											),
+										ValidateFunc: validation.StringMatch(
+											regexp.MustCompile(`^[a-z0-9_]{1,48}$`),
+											"The column name can have up to 48 characters. It can only contain lowercase alpha-numeric characters and underscores.",
 										),
 									},
 									"type": {
@@ -230,12 +221,9 @@ func ResourceTable() *schema.Resource {
 										Type:     schema.TypeString,
 										Required: true,
 										ForceNew: true,
-										ValidateFunc: validation.All(
-											validation.StringLenBetween(1, 48),
-											validation.StringMatch(
-												regexp.MustCompile(`^[a-z0-9][a-z0-9_]{1,47}$`),
-												"The name must consist of lower case alphanumerics and underscores.",
-											),
+										ValidateFunc: validation.StringMatch(
+											regexp.MustCompile(`^[a-z0-9_]{1,48}$`),
+											"The column name can have up to 48 characters. It can only contain lowercase alpha-numeric characters and underscores.",
 										),
 									},
 								},
@@ -251,12 +239,9 @@ func ResourceTable() *schema.Resource {
 										Type:     schema.TypeString,
 										Required: true,
 										ForceNew: true,
-										ValidateFunc: validation.All(
-											validation.StringLenBetween(1, 48),
-											validation.StringMatch(
-												regexp.MustCompile(`^[a-z0-9][a-z0-9_]{1,47}$`),
-												"The name must consist of lower case alphanumerics and underscores.",
-											),
+										ValidateFunc: validation.StringMatch(
+											regexp.MustCompile(`^[a-z0-9_]{1,48}$`),
+											"The column name can have up to 48 characters. It can only contain lowercase alpha-numeric characters and underscores.",
 										),
 									},
 								},
@@ -269,12 +254,9 @@ func ResourceTable() *schema.Resource {
 				Type:     schema.TypeString,
 				ForceNew: true,
 				Required: true,
-				ValidateFunc: validation.All(
-					validation.StringLenBetween(1, 48),
-					validation.StringMatch(
-						regexp.MustCompile(`^[a-zA-Z0-9][a-zA-Z0-9_]{1,47}$`),
-						"The name must consist of alphanumerics and underscores.",
-					),
+				ValidateFunc: validation.StringMatch(
+					regexp.MustCompile(`^[a-zA-Z0-9_]{1,48}$`),
+					"The table name can have up to 48 characters. It can only contain alpha-numeric characters and underscores.",
 				),
 			},
 			names.AttrTags:    tftags.TagsSchema(),
diff --git a/internal/service/keyspaces/table_test.go b/internal/service/keyspaces/table_test.go
index 06acbc2ba94..98605bcb3af 100644
--- a/internal/service/keyspaces/table_test.go
+++ b/internal/service/keyspaces/table_test.go
@@ -176,7 +176,7 @@ func TestAccKeyspacesTable_multipleColumns(t *testing.T) {
 						"type": "text",
 					}),
 					resource.TestCheckTypeSetElemNestedAttrs(resourceName, "schema_definition.0.column.*", map[string]string{
-						"name": "name",
+						"name": "n",
 						"type": "text",
 					}),
 					resource.TestCheckTypeSetElemNestedAttrs(resourceName, "schema_definition.0.column.*", map[string]string{
@@ -196,7 +196,7 @@ func TestAccKeyspacesTable_multipleColumns(t *testing.T) {
 						"type": "text",
 					}),
 					resource.TestCheckTypeSetElemNestedAttrs(resourceName, "schema_definition.0.column.*", map[string]string{
-						"name": "pay_scale",
+						"name": "pay_scale0",
 						"type": "int",
 					}),
 					resource.TestCheckTypeSetElemNestedAttrs(resourceName, "schema_definition.0.column.*", map[string]string{
@@ -224,7 +224,7 @@ func TestAccKeyspacesTable_multipleColumns(t *testing.T) {
 						"name": "role",
 					}),
 					resource.TestCheckTypeSetElemNestedAttrs(resourceName, "schema_definition.0.static_column.*", map[string]string{
-						"name": "pay_scale",
+						"name": "pay_scale0",
 					}),
 				),
 			},
@@ -626,7 +626,7 @@ resource "aws_keyspaces_table" "test" {
     }
 
     column {
-      name = "name"
+      name = "n"
       type = "text"
     }
 
@@ -651,7 +651,7 @@ resource "aws_keyspaces_table" "test" {
     }
 
     column {
-      name = "pay_scale"
+      name = "pay_scale0"
       type = "int"
     }
 
@@ -694,7 +694,7 @@ resource "aws_keyspaces_table" "test" {
     }
 
     static_column {
-      name = "pay_scale"
+      name = "pay_scale0"
     }
   }
 }