diff --git a/docs/content/2.api/1.composables/2.helpers/use-sort-by.md b/docs/content/2.api/1.composables/2.helpers/use-sort-by.md
index 77fa467b3..af3c12907 100644
--- a/docs/content/2.api/1.composables/2.helpers/use-sort-by.md
+++ b/docs/content/2.api/1.composables/2.helpers/use-sort-by.md
@@ -20,6 +20,9 @@ useSortBy(users, 'name')
 // sort by the `name` attribute case insensitive
 useSortBy(users, 'name', 'SORT_FLAG_CASE')
 
+// sort by the `name` attribute locale aware
+useSortBy(users, 'name', new Intl.Collator('lt'))
+
 // sorts the collection by 'name' descending and then by 'lastname' ascending
 useSortBy(users, [
     ['name', 'desc'],
@@ -36,6 +39,7 @@ useSortBy(users, (model) => model.age)
 ````ts
 export type sorting<T> = ((record: T) => any) | string | [string, 'asc' | 'desc'][]
 export type SortFlags = 'SORT_REGULAR' | 'SORT_FLAG_CASE'
+export type SortComparator = SortFlags | Intl.Collator
 
-export function useSortBy<T>(collection: T[], sort: sorting<T>, flags?: SortFlags): T[]
+export function useSortBy<T>(collection: T[], sort: sorting<T>, flags?: SortComparator): T[]
 ````
diff --git a/docs/content/2.api/3.query/order-by.md b/docs/content/2.api/3.query/order-by.md
index cb39a66b4..8caa937ac 100644
--- a/docs/content/2.api/3.query/order-by.md
+++ b/docs/content/2.api/3.query/order-by.md
@@ -24,10 +24,21 @@ useRepo(User)
 
 // Sort user name by its third character.
 useRepo(User).orderBy(user => user.name[2]).get()
+
+// Sort user names case insensitive.
+useRepo(User).orderBy('name', 'asc', 'SORT_FLAG_CASE').get()
+
+// Sort user names locale aware with an Intl.Collator,
+// e.g. for Lithuanian: A, B, Š, T, U instead of A, B, T, U, Š.
+useRepo(User).orderBy('name', 'asc', new Intl.Collator('lt')).get()
 ````
 
+The optional third argument accepts either one of the sort flags (`'SORT_REGULAR'`, `'SORT_FLAG_CASE'`) or any [`Intl.Collator`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator) instance. A collator is used to compare string values, which enables locale aware sorting as well as options like numeric ordering (`new Intl.Collator(undefined, { numeric: true })`).
+
 ## Typescript Declarations
 
 ````ts
-function orderBy(field: OrderBy, direction: OrderDirection = 'asc'): Query
+function orderBy(field: OrderBy, direction: OrderDirection = 'asc', flags: SortComparator = 'SORT_REGULAR'): Query
+
+type SortComparator = 'SORT_REGULAR' | 'SORT_FLAG_CASE' | Intl.Collator
 ````
diff --git a/packages/pinia-orm/src/composables/collection/useCollect.ts b/packages/pinia-orm/src/composables/collection/useCollect.ts
index 2217a5c52..bb8b447db 100644
--- a/packages/pinia-orm/src/composables/collection/useCollect.ts
+++ b/packages/pinia-orm/src/composables/collection/useCollect.ts
@@ -1,5 +1,5 @@
 import type { Collection, Model } from '../../../src'
-import type { SortFlags } from '../../support/Utils'
+import type { SortComparator } from '../../support/Utils'
 import { useSum } from './useSum'
 import { useMax } from './useMax'
 import { useMin } from './useMin'
@@ -15,7 +15,7 @@ export interface UseCollect<M extends Model = Model> {
   max: (field: string) => number
   pluck: (field: string) => any[]
   groupBy: (fields: string[] | string) => Record<string, Collection<M>>
-  sortBy: (sort: sorting<M>, flags?: SortFlags) => M[]
+  sortBy: (sort: sorting<M>, flags?: SortComparator) => M[]
   keys: () => string[]
 }
 
@@ -29,7 +29,7 @@ export function useCollect<M extends Model = Model> (models: Collection<M>): Use
     max: field => useMax(models, field),
     pluck: field => usePluck(models, field),
     groupBy: fields => useGroupBy(models, fields),
-    sortBy: (sort, flags: SortFlags = 'SORT_REGULAR') => useSortBy(models, sort, flags),
+    sortBy: (sort, flags: SortComparator = 'SORT_REGULAR') => useSortBy(models, sort, flags),
     keys: () => useKeys(models),
   }
 }
diff --git a/packages/pinia-orm/src/composables/collection/useSortBy.ts b/packages/pinia-orm/src/composables/collection/useSortBy.ts
index e547498ae..a8d3b57ec 100644
--- a/packages/pinia-orm/src/composables/collection/useSortBy.ts
+++ b/packages/pinia-orm/src/composables/collection/useSortBy.ts
@@ -1,4 +1,4 @@
-import type { SortFlags } from '../../support/Utils'
+import type { SortComparator } from '../../support/Utils'
 import { orderBy } from '../../support/Utils'
 
 export type sorting<T> = ((record: T) => any) | string | [string, 'asc' | 'desc'][]
@@ -7,7 +7,7 @@ export type sorting<T> = ((record: T) => any) | string | [string, 'asc' | 'desc'
  * Creates an array of elements, sorted in specified order by the results
  * of running each element in a collection thru each iteratee.
  */
-export function useSortBy<T extends Record<string, any>> (collection: T[], sort: sorting<T>, flags?: SortFlags): T[] {
+export function useSortBy<T extends Record<string, any>> (collection: T[], sort: sorting<T>, flags?: SortComparator): T[] {
   const directions = []
   const iteratees = []
 
diff --git a/packages/pinia-orm/src/query/Options.ts b/packages/pinia-orm/src/query/Options.ts
index 0b9932c19..f0805ad41 100644
--- a/packages/pinia-orm/src/query/Options.ts
+++ b/packages/pinia-orm/src/query/Options.ts
@@ -1,4 +1,5 @@
 import type { Model, WithKeys } from '../model/Model'
+import type { SortComparator } from '../support/Utils'
 import type { Query } from './Query'
 
 export interface Where<T = Model> {
@@ -23,6 +24,7 @@ export interface WhereGroup {
 export interface Order {
   field: OrderBy
   direction: OrderDirection
+  flags?: SortComparator
 }
 
 export interface Group {
diff --git a/packages/pinia-orm/src/query/Query.ts b/packages/pinia-orm/src/query/Query.ts
index 1784529ea..8b68cf3f0 100644
--- a/packages/pinia-orm/src/query/Query.ts
+++ b/packages/pinia-orm/src/query/Query.ts
@@ -9,6 +9,7 @@ import {
   isFunction,
   orderBy,
 } from '../support/Utils'
+import type { SortComparator } from '../support/Utils'
 import type { Collection, Element, Elements, GroupedCollection, Item, NormalizedData } from '../data/Data'
 import type { Database } from '../database/Database'
 import { Relation } from '../model/attributes/relations/Relation'
@@ -359,8 +360,8 @@ export class Query<M extends Model = Model> {
   /**
    * Add an "order by" clause to the query.
    */
-  orderBy (field: OrderBy, direction: OrderDirection = 'asc'): this {
-    this.orders.push({ field, direction })
+  orderBy (field: OrderBy, direction: OrderDirection = 'asc', flags: SortComparator = 'SORT_REGULAR'): this {
+    this.orders.push({ field, direction, flags })
 
     return this
   }
@@ -625,8 +626,9 @@ export class Query<M extends Model = Model> {
   protected filterOrder (models: Collection<M>): Collection<M> {
     const fields = this.orders.map(order => order.field)
     const directions = this.orders.map(order => order.direction)
+    const flags = this.orders.map(order => order.flags ?? 'SORT_REGULAR')
 
-    return orderBy(models, fields, directions)
+    return orderBy(models, fields, directions, flags)
   }
 
   /**
diff --git a/packages/pinia-orm/src/repository/Repository.ts b/packages/pinia-orm/src/repository/Repository.ts
index 8d4bd7617..dadd589ed 100644
--- a/packages/pinia-orm/src/repository/Repository.ts
+++ b/packages/pinia-orm/src/repository/Repository.ts
@@ -1,6 +1,7 @@
 import type { Pinia } from 'pinia'
 import type { Constructor } from '../types'
 import { assert, isArray } from '../support/Utils'
+import type { SortComparator } from '../support/Utils'
 import type { Collection, Element, Item } from '../data/Data'
 import type { Database } from '../database/Database'
 import type { Model, WithKeys } from '../model/Model'
@@ -332,8 +333,8 @@ export class Repository<M extends Model = Model> {
   /**
    * Add an "order by" clause to the query.
    */
-  orderBy (field: OrderBy, direction?: OrderDirection): Query<M> {
-    return this.query().orderBy(field, direction)
+  orderBy (field: OrderBy, direction?: OrderDirection, flags?: SortComparator): Query<M> {
+    return this.query().orderBy(field, direction, flags)
   }
 
   /**
diff --git a/packages/pinia-orm/src/support/Utils.ts b/packages/pinia-orm/src/support/Utils.ts
index dd95a5167..f0c16f52a 100644
--- a/packages/pinia-orm/src/support/Utils.ts
+++ b/packages/pinia-orm/src/support/Utils.ts
@@ -8,6 +8,8 @@ interface SortableArray<T> {
 
 export type SortFlags = 'SORT_REGULAR' | 'SORT_FLAG_CASE'
 
+export type SortComparator = SortFlags | Intl.Collator
+
 /**
  * Compare two values with custom string operator
  */
@@ -77,7 +79,7 @@ export function orderBy<T extends Element> (
   collection: T[],
   iteratees: (((record: T) => any) | string)[],
   directions: string[],
-  flags: SortFlags = 'SORT_REGULAR',
+  flags: SortComparator | SortComparator[] = 'SORT_REGULAR',
 ): T[] {
   let index = -1
 
@@ -130,7 +132,7 @@ function compareMultiple<T> (
   object: SortableArray<T>,
   other: SortableArray<T>,
   directions: string[],
-  flags: SortFlags,
+  flags: SortComparator | SortComparator[],
 ): number {
   let index = -1
 
@@ -139,7 +141,7 @@ function compareMultiple<T> (
   const length = objCriteria.length
 
   while (++index < length) {
-    const result = compareAscending(objCriteria[index], othCriteria[index], flags)
+    const result = compareAscending(objCriteria[index], othCriteria[index], isArray(flags) ? flags[index] ?? 'SORT_REGULAR' : flags)
 
     if (result) {
       const direction = directions[index]
@@ -153,8 +155,13 @@ function compareMultiple<T> (
 /**
  * Compares values to sort them in ascending order.
  */
-function compareAscending (value: any, other: any, flags: SortFlags): number {
+function compareAscending (value: any, other: any, flags: SortComparator): number {
   if (value !== other) {
+    if (typeof flags === 'object' && typeof value === 'string' && typeof other === 'string') {
+      const result = flags.compare(value, other)
+      return result > 0 ? 1 : result < 0 ? -1 : 0
+    }
+
     const valIsDefined = value !== undefined
     const valIsNull = value === null
     const valIsReflexive = value === value
diff --git a/packages/pinia-orm/tests/feature/repository/retrieves_order_by.spec.ts b/packages/pinia-orm/tests/feature/repository/retrieves_order_by.spec.ts
index 12922fcc9..656063f2c 100644
--- a/packages/pinia-orm/tests/feature/repository/retrieves_order_by.spec.ts
+++ b/packages/pinia-orm/tests/feature/repository/retrieves_order_by.spec.ts
@@ -115,6 +115,34 @@ describe('feature/repository/retrieves_order_by', () => {
     assertModels(users, expected)
   })
 
+  it('can sort records locale aware with a collator', () => {
+    const userRepo = useRepo(User)
+
+    fillState({
+      users: {
+        1: { id: 1, name: 'T', age: 40 },
+        2: { id: 2, name: 'A', age: 30 },
+        3: { id: 3, name: 'Š', age: 20 },
+        4: { id: 4, name: 'U', age: 20 },
+        5: { id: 5, name: 'B', age: 50 },
+      },
+    })
+
+    const users = userRepo.orderBy('name', 'asc', new Intl.Collator('lt')).get()
+
+    const expected = [
+      { id: 2, name: 'A', age: 30 },
+      { id: 5, name: 'B', age: 50 },
+      { id: 3, name: 'Š', age: 20 },
+      { id: 1, name: 'T', age: 40 },
+      { id: 4, name: 'U', age: 20 },
+    ]
+
+    expect(users).toHaveLength(5)
+    assertInstanceOf(users, User)
+    assertModels(users, expected)
+  })
+
   it('can sort nested records by pivot', () => {
     Model.clearRegistries()
     class User extends Model {
diff --git a/packages/pinia-orm/tests/unit/support/Utils_Order_By.spec.ts b/packages/pinia-orm/tests/unit/support/Utils_Order_By.spec.ts
index 5cdad1d24..928fa793b 100644
--- a/packages/pinia-orm/tests/unit/support/Utils_Order_By.spec.ts
+++ b/packages/pinia-orm/tests/unit/support/Utils_Order_By.spec.ts
@@ -98,4 +98,30 @@ describe('unit/support/Utils_Order_by', () => {
 
     expect(orderBy(collection, [v => v.id], ['asc'])).toEqual(expected)
   })
+
+  it('can order collection with a collator', () => {
+    const collection = [{ name: 'T' }, { name: 'Š' }, { name: 'A' }]
+
+    const expected = [{ name: 'A' }, { name: 'Š' }, { name: 'T' }]
+
+    expect(orderBy(collection, ['name'], ['asc'], new Intl.Collator('lt'))).toEqual(expected)
+  })
+
+  it('can order collection with different flags per field', () => {
+    const collection = [
+      { name: 'T', group: 'b' },
+      { name: 'Š', group: 'B' },
+      { name: 'A', group: 'B' },
+      { name: 'B', group: 'a' },
+    ]
+
+    const expected = [
+      { name: 'B', group: 'a' },
+      { name: 'A', group: 'B' },
+      { name: 'Š', group: 'B' },
+      { name: 'T', group: 'b' },
+    ]
+
+    expect(orderBy(collection, ['group', 'name'], ['asc', 'asc'], ['SORT_FLAG_CASE', new Intl.Collator('lt')])).toEqual(expected)
+  })
 })