diff --git a/README.md b/README.md
index 1851c42dc..7e1bfdeff 100644
--- a/README.md
+++ b/README.md
@@ -120,7 +120,7 @@ Validator                               | Description
 **isMACAddress(str)**                   | check if the string is a MAC address.<br/><br/>`options` is an object which defaults to `{no_colons: false}`. If `no_colons` is true, the validator will allow MAC addresses without the colons.
 **isMD5(str)**                          | check if the string is a MD5 hash.
 **isMimeType(str)**                     | check if the string matches to a valid [MIME type](https://en.wikipedia.org/wiki/Media_type) format
-**isMobilePhone(str [, locale [, options]])**          | check if the string is a mobile phone number,<br/><br/>(locale is either an array of locales (e.g `['sk-SK', 'sr-RS']`) OR one of `['ar-AE', 'ar-DZ', 'ar-EG', 'ar-IQ', ar-JO', 'ar-KW', 'ar-SA', 'ar-SY', 'ar-TN', 'be-BY', 'bg-BG', 'bn-BD', 'cs-CZ', 'de-DE', 'da-DK', 'el-GR', 'en-AU', 'en-CA', 'en-GB', 'en-GH', 'en-HK', 'en-IE', 'en-IN',  'en-KE', 'en-MU', en-NG', 'en-NZ', 'en-RW', 'en-SG', 'en-UG', 'en-US', 'en-TZ', 'en-ZA', 'en-ZM', 'en-PK', 'es-ES', 'es-MX', 'es-UY', 'et-EE', 'fa-IR', 'fi-FI', 'fr-FR', 'he-IL', 'hu-HU', 'id-ID', 'it-IT', 'ja-JP', 'kk-KZ', 'ko-KR', 'lt-LT', 'ms-MY', 'nb-NO', 'nn-NO', 'pl-PL', 'pt-PT', 'pt-BR', 'ro-RO', 'ru-RU', 'sl-SI', 'sk-SK', 'sr-RS', 'sv-SE', 'th-TH', 'tr-TR', 'uk-UA', 'vi-VN', 'zh-CN', 'zh-HK', 'zh-TW']` OR defaults to 'any'. If 'any' or a falsey value is used, function will check if any of the locales match).<br/><br/>`options` is an optional object that can be supplied with the following keys: `strictMode`, if this is set to `true`, the mobile phone number must be supplied with the country code and therefore must start with `+`. Locale list is `validator.isMobilePhoneLocales`.
+**isMobilePhone(str [, locale [, options]])**          | check if the string is a mobile phone number,<br/><br/>(locale is either an array of locales (e.g `['sk-SK', 'sr-RS']`) OR one of `['ar-AE', 'ar-DZ', 'ar-EG', 'ar-IQ', ar-JO', 'ar-KW', 'ar-SA', 'ar-SY', 'ar-TN', 'be-BY', 'bg-BG', 'bn-BD', 'cs-CZ', 'de-DE', 'da-DK', 'el-GR', 'en-AU', 'en-CA', 'en-GB', 'en-GH', 'en-HK', 'en-IE', 'en-IN',  'en-KE', 'en-MU', en-NG', 'en-NZ', 'en-RW', 'en-SG', 'en-UG', 'en-US', 'en-TZ', 'en-ZA', 'en-ZM', 'en-PK', 'es-ES', 'es-MX', 'es-PY', 'es-UY', 'et-EE', 'fa-IR', 'fi-FI', 'fr-FR', 'he-IL', 'hu-HU', 'id-ID', 'it-IT', 'ja-JP', 'kk-KZ', 'ko-KR', 'lt-LT', 'ms-MY', 'nb-NO', 'nn-NO', 'pl-PL', 'pt-PT', 'pt-BR', 'ro-RO', 'ru-RU', 'sl-SI', 'sk-SK', 'sr-RS', 'sv-SE', 'th-TH', 'tr-TR', 'uk-UA', 'vi-VN', 'zh-CN', 'zh-HK', 'zh-TW']` OR defaults to 'any'. If 'any' or a falsey value is used, function will check if any of the locales match).<br/><br/>`options` is an optional object that can be supplied with the following keys: `strictMode`, if this is set to `true`, the mobile phone number must be supplied with the country code and therefore must start with `+`. Locale list is `validator.isMobilePhoneLocales`.
 **isMongoId(str)**                      | check if the string is a valid hex-encoded representation of a [MongoDB ObjectId][mongoid].
 **isMultibyte(str)**                    | check if the string contains one or more multibyte chars.
 **isNumeric(str [, options])**                      | check if the string contains only numbers.<br/><br/>`options` is an object which defaults to `{no_symbols: false}`. If `no_symbols` is true, the validator will reject numeric strings that feature a symbol (e.g. `+`, `-`, or `.`).
diff --git a/src/lib/isMobilePhone.js b/src/lib/isMobilePhone.js
index 2e4fe74d3..2a660a0f1 100644
--- a/src/lib/isMobilePhone.js
+++ b/src/lib/isMobilePhone.js
@@ -38,6 +38,7 @@ const phones = {
   'en-ZM': /^(\+?26)?09[567]\d{7}$/,
   'es-ES': /^(\+?34)?(6\d{1}|7[1234])\d{7}$/,
   'es-MX': /^(\+?52)?(1|01)?\d{10,11}$/,
+  'es-PY': /^(\+?595|0)9[9876]\d{7}$/,
   'es-UY': /^(\+598|0)9[1-9][\d]{6}$/,
   'et-EE': /^(\+?372)?\s?(5|8[1-4])\s?([0-9]\s?){6,7}$/,
   'fa-IR': /^(\+?98[\-\s]?|0)9[0-39]\d[\-\s]?\d{3}[\-\s]?\d{4}$/,
diff --git a/test/validators.js b/test/validators.js
index ebddb84bf..cf7e04e73 100644
--- a/test/validators.js
+++ b/test/validators.js
@@ -4140,6 +4140,41 @@ describe('Validators', () => {
           '+34754789321',
         ],
       },
+      {
+        locale: 'es-PY',
+        valid: [
+          '+595991372649',
+          '+595992847352',
+          '+595993847593',
+          '+595994857473',
+          '+595995348532',
+          '+595996435231',
+          '+595981847362',
+          '+595982435452',
+          '+595983948502',
+          '+595984342351',
+          '+595985403481',
+          '+595986384012',
+          '+595971435231',
+          '+595972103924',
+          '+595973438542',
+          '+595974425864',
+          '+595975425843',
+          '+595976342546',
+          '+595961435234',
+          '+595963425043',
+        ],
+        invalid: [
+          '12345',
+          '',
+          'Vml2YW11cyBmZXJtZtesting123',
+          '65478932',
+          '+59599384712',
+          '+5959938471234',
+          '+595547893218',
+          '+591993546843',
+        ],
+      },
       {
         locale: 'es-UY',
         valid: [