diff --git a/pkg/server/ptypes/project_template.go b/pkg/server/ptypes/project_template.go
new file mode 100644
index 00000000000..6b162acf0a1
--- /dev/null
+++ b/pkg/server/ptypes/project_template.go
@@ -0,0 +1,121 @@
+package ptypes
+
+import (
+	validation "github.com/go-ozzo/ozzo-validation/v4"
+	"github.com/imdario/mergo"
+	"github.com/mitchellh/go-testing-interface"
+	"github.com/stretchr/testify/require"
+	"regexp"
+
+	"github.com/hashicorp/waypoint/internal/pkg/validationext"
+	pb "github.com/hashicorp/waypoint/pkg/server/gen"
+)
+
+const (
+	PROJECT_TEMPLATE_ID_LENGTH               = 64
+	PROJECT_TEMPLATE_NAME_LENGTH             = 64
+	PROJECT_TEMPLATE_TAG_LENGTH              = 64
+	PROJECT_TEMPLATE_SUMMARY_LENGTH          = 64
+	PROJECT_TEMPLATE_EXPANDED_SUMMARY_LENGTH = 512
+	PROJECT_TEMPLATE_README_LENGTH           = 1024 ^ 2
+	PROJECT_TEMPLATE_WAYPOINT_HCL_LENGTH     = 1024 ^ 2
+
+	TERRAFORM_NOCODE_MODULE_SOURCE_LENGTH  = 256
+	TERRAFORM_NOCODE_MODULE_VERSION_LENGTH = 256
+)
+
+func TestProjectTemplate(t testing.T, src *pb.ProjectTemplate) *pb.ProjectTemplate {
+	t.Helper()
+
+	if src == nil {
+		src = &pb.ProjectTemplate{}
+	}
+
+	require.NoError(t, mergo.Merge(src, &pb.Project{
+		Name: "test",
+	}))
+
+	return src
+}
+
+func ValidateCreateProjectTemplateRequest(req *pb.CreateProjectTemplateRequest) error {
+	return validationext.Error(validation.ValidateStruct(req,
+		validation.Field(&req.ProjectTemplate, validation.Required),
+		validationext.StructField(&req.ProjectTemplate, func() []*validation.FieldRules {
+			return append(
+				// Rules specific to creating a project template
+				[]*validation.FieldRules{
+					validation.Field(&req.ProjectTemplate.Name,
+						validation.Required,
+						validation.Match(regexp.MustCompile(`\S+`)), // Disallow only whitespace
+					),
+				},
+
+				// General project template validation rules
+				validateProjectTemplateRules(req.ProjectTemplate)...,
+			)
+		}),
+	))
+}
+
+func ValidateUpdateProjectTemplateRequest(req *pb.UpdateProjectTemplateRequest) error {
+	return validationext.Error(validation.ValidateStruct(req,
+		validation.Field(&req.ProjectTemplate, validation.Required),
+		validationext.StructField(&req.ProjectTemplate, func() []*validation.FieldRules {
+			return append(
+				// Rules specific to creating a project template
+				[]*validation.FieldRules{
+					// Require either Name or ID
+					validation.Field(&req.ProjectTemplate.Id, validation.Required.When(req.ProjectTemplate.Name == "").Error("Either Name or ID is required.")),
+					validation.Field(&req.ProjectTemplate.Name, validation.Required.When(req.ProjectTemplate.Id == "").Error("Either Name or ID is required.")),
+				},
+
+				// General project template validation rules
+				validateProjectTemplateRules(req.ProjectTemplate)...,
+			)
+		}),
+	))
+}
+
+// validateProjectTemplateRules validates the rules that must be true of any project template in any
+// request or response.
+func validateProjectTemplateRules(pt *pb.ProjectTemplate) []*validation.FieldRules {
+	return []*validation.FieldRules{
+		validation.Field(&pt.Id, validation.Length(0, PROJECT_TEMPLATE_ID_LENGTH)),
+		validation.Field(&pt.Name, validation.Length(0, PROJECT_TEMPLATE_NAME_LENGTH)),
+
+		validationext.StructField(&pt.TerraformNocodeModule, func() []*validation.FieldRules {
+			return validateTerraformNocodeModule(pt.TerraformNocodeModule)
+		}),
+
+		validation.Field(&pt.Summary, validation.Length(0, PROJECT_TEMPLATE_SUMMARY_LENGTH)),
+		validation.Field(&pt.ExpandedSummary, validation.Length(0, PROJECT_TEMPLATE_EXPANDED_SUMMARY_LENGTH)),
+		validation.Field(&pt.ReadmeMarkdownTemplate, validation.Length(0, PROJECT_TEMPLATE_README_LENGTH)),
+
+		validation.Field(&pt.Tags, validation.Each(
+			validation.Length(1, PROJECT_TEMPLATE_TAG_LENGTH),
+		)),
+
+		validationext.StructField(&pt.WaypointProject, func() []*validation.FieldRules {
+			return []*validation.FieldRules{
+				validation.Field(
+					&pt.WaypointProject.WaypointHclTemplate,
+					validation.Length(1, PROJECT_TEMPLATE_WAYPOINT_HCL_LENGTH),
+				),
+			}
+		}),
+	}
+}
+
+func validateTerraformNocodeModule(t *pb.ProjectTemplate_TerraformNocodeModule) []*validation.FieldRules {
+	return []*validation.FieldRules{
+		validation.Field(&t.Source,
+			validation.Required,
+			validation.Length(1, TERRAFORM_NOCODE_MODULE_SOURCE_LENGTH),
+		),
+		validation.Field(&t.Version,
+			validation.Required,
+			validation.Length(1, TERRAFORM_NOCODE_MODULE_VERSION_LENGTH),
+		),
+	}
+}
diff --git a/pkg/server/ptypes/project_template_test.go b/pkg/server/ptypes/project_template_test.go
new file mode 100644
index 00000000000..294352d6bb5
--- /dev/null
+++ b/pkg/server/ptypes/project_template_test.go
@@ -0,0 +1,168 @@
+package ptypes
+
+import (
+	validation "github.com/go-ozzo/ozzo-validation/v4"
+	"testing"
+
+	pb "github.com/hashicorp/waypoint/pkg/server/gen"
+)
+
+func TestValidateCreateProjectTemplateRequest(t *testing.T) {
+	tests := []struct {
+		name    string
+		req     *pb.CreateProjectTemplateRequest
+		wantErr bool
+	}{
+		{
+			name: "minimum valid request",
+			req: &pb.CreateProjectTemplateRequest{
+				ProjectTemplate: &pb.ProjectTemplate{
+					Name: "test",
+				},
+			},
+			wantErr: false,
+		},
+		{
+			name: "enforces name",
+			req: &pb.CreateProjectTemplateRequest{
+				ProjectTemplate: &pb.ProjectTemplate{},
+			},
+			wantErr: true,
+		},
+		{
+			name: "Inherits base validator rules (example: name length)",
+			req: &pb.CreateProjectTemplateRequest{
+				ProjectTemplate: &pb.ProjectTemplate{
+					Name: string(make([]byte, PROJECT_TEMPLATE_NAME_LENGTH+1)),
+				},
+			},
+			wantErr: true,
+		},
+		{
+			name: "enforces name to not be empty",
+			req: &pb.CreateProjectTemplateRequest{
+				ProjectTemplate: &pb.ProjectTemplate{
+					Name: " "},
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := ValidateCreateProjectTemplateRequest(tt.req)
+			if err == nil && tt.wantErr {
+				t.Errorf("expected error in ValidateCreateProjectTemplateRequest() but got none")
+			}
+
+			if err != nil && !tt.wantErr {
+				t.Errorf("ValidateCreateProjectTemplateRequest() error = %v, wantErr %v", err, tt.wantErr)
+			}
+
+		})
+	}
+}
+
+func TestValidateUpdateProjectTemplateRequest(t *testing.T) {
+	tests := []struct {
+		name    string
+		req     *pb.UpdateProjectTemplateRequest
+		wantErr bool
+	}{
+		{
+			name: "Fails if no name or ID is given",
+			req: &pb.UpdateProjectTemplateRequest{
+				ProjectTemplate: &pb.ProjectTemplate{},
+			},
+			wantErr: true,
+		},
+		{
+			name: "OK with just name",
+			req: &pb.UpdateProjectTemplateRequest{
+				ProjectTemplate: &pb.ProjectTemplate{
+					Name: "test",
+				},
+			},
+			wantErr: false,
+		},
+		{
+			name: "OK with just ID",
+			req: &pb.UpdateProjectTemplateRequest{
+				ProjectTemplate: &pb.ProjectTemplate{
+					Id: "test",
+				},
+			},
+			wantErr: false,
+		},
+		{
+			name: "Also runs base project template validator",
+			req: &pb.UpdateProjectTemplateRequest{
+				ProjectTemplate: &pb.ProjectTemplate{
+					Id: string(make([]byte, PROJECT_TEMPLATE_ID_LENGTH+1)),
+				},
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := ValidateUpdateProjectTemplateRequest(tt.req)
+
+			if err == nil && tt.wantErr {
+				t.Errorf("expected error in ValidateUpdateProjectTemplateRequest() but got none")
+			}
+
+			if err != nil && !tt.wantErr {
+				t.Errorf("ValidateUpdateProjectTemplateRequest() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestValidateProjectTemplate(t *testing.T) {
+	tests := []struct {
+		name    string
+		pt      *pb.ProjectTemplate
+		wantErr bool
+	}{
+		{
+			name:    "Fine with empty values",
+			pt:      &pb.ProjectTemplate{},
+			wantErr: false,
+		},
+		{
+			name: "If name is set, enforces length limits",
+			pt: &pb.ProjectTemplate{
+				Name: string(make([]byte, PROJECT_TEMPLATE_NAME_LENGTH+1)),
+			},
+			wantErr: true,
+		},
+		{
+			name: "Validates nexted TFC-related lengths",
+			pt: &pb.ProjectTemplate{
+				TerraformNocodeModule: &pb.ProjectTemplate_TerraformNocodeModule{
+					Source:  "", // Empty string shouldn't be allowed
+					Version: "0.0.1",
+				},
+			},
+			wantErr: true,
+		},
+		{
+			name: "Tag lengths",
+			pt: &pb.ProjectTemplate{
+				Tags: []string{string(make([]byte, PROJECT_TEMPLATE_TAG_LENGTH+1))},
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := validation.ValidateStruct(tt.pt, validateProjectTemplateRules(tt.pt)...)
+			if err == nil && tt.wantErr {
+				t.Errorf("expected error in validation but got none")
+			}
+			if err != nil && !tt.wantErr {
+				t.Errorf("validation error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}