Lord Ganesha is said as the remover of obstacles, the patron of all arts and sciences, also known as the bestower of intellect and wisdom. He is worshipped at the beginning of every Hindu ritual. •
Here are the Twenty one names alongwith their associated “MANTRAS of LORD GANESHA” for wisdom, prosperity, security, happiness, success, education, good fortune and destroying all kinds of obstacles.

1. Sumukha
~the one with a beautiful face.
Mantra ~ ॐ सुमुखाय नमः! : Om Sumukhaya namah!

2. Ganadhisha
~the lord of guards of Lord Shiva.
Mantra ~ ॐ गणाधीशाय नमः! : Om Ganadhishaya Namah!

3. Umaputra
~the son of Goddess Uma.
Mantra ~ ॐ उमापुत्राय नमः! : Om Uma Putraya Namah!

4. Gajamukha
~the one with an elephant face.
Mantra ~ ॐ गज मुखाय नमः! : Om Gajamukhaya Namah!

5. Lambodara
~the one with a huge belly or appetite.
Mantra ~ ॐ लम्बोदराय नमः! : Om Lambodaraya Namah!

6. Harasuna
~the one who has a golden colour.
Mantra ~ ॐ हर सूआनवे नमः! : Om Hara Sunave Namah!

7.Shurpakarna
~the one with huge ears.
Mantra ~ ॐ शुपकर्णय नमः! : Om Shurpakarnaya Namah!

8. Vakratunda
~the one with a curved mouth.
Mantra ~ ॐ वक्रतुण्डाय नमः! : Om Vakratundaya Namah!

9. Guhagraja ~the one with a heavy voice.
Mantra ~ ॐ गुहग्रजाय नमः! : Om Guhagrajaya Namah!

10. Ekadanta ~the one with a single teeth.
Mantra ~ ॐ एकदंताय नमः! : Om Ekadantaya NamahHeramba!

11. Heramba ~the one loved by mother
Mantra ~ ॐ हेराम्ब्राय नमः! : Om Herambaraya Namah!

12. Chaturhotra ~ the one with four hands.
Mantra ~ ॐ चतुरहोत्राय नमः! Om Chaturhotrai Namah!

13. Sarveshwara
~the one who is the lord of the entire universe.
Mantra ~ ॐ सर्वेश्वराय नमः! Om Sarveshwaray Namah!

14. Vikata ~ the one who is ferocious or complex.
Mantrra ~ ॐ विकटाय नमः!Om Vikataya Namah.

15. Hematunda ~ the one who stays on the Himalayas.
Mantra ~ ॐ हेमातुण्डये नमः!Om Hematunday Namah!

16. Vinayak ~ the one who has the ability to lead well
The mantra chanted while worshipping Vinayaka form of Lord Ganesha is.
Mantra ~ ॐ विनायकाय नमः! Om Vinayakay Namah!

17. Kapila ~ the one who is golden in colour
Mantra ~ ॐ कपिलाय नमः!Om Kapilaya Namah!

18. Haridra ~ the one who is yellow in colour
The associated mantra is.
Mantra ~ ॐ हृद्राय नमः! Om Haridraya Namah!

19. Bhaalchandra ~ the one who is moon crested.
Mantra ~ ॐ भालचन्द्राय नमः!Om Bhaalchandraya Namah!

20. Suragraj
~the one who is the lord of the entire heaven.
Mantra ~ ॐ सुराग्रजाय नमः!Om Suragrajay Namah!

21. Siddhi Vinayak ~the bestower of success
Mantra ~ ॐ सिद्धि विनायकाय नमः!Om Siddhi Vinayakay Namah!