Mantras to Lord Shiva

OM
Tat Purushaya Vidmahe Mahadevaaya Dhimahi 
Tanno Rudra Prachodayat
Let me meditate on the Great Purusha. Oh greatest God, give me higher intellect. And let Rudra illuminate my mind.

OM
Mrutyunjayaaya Rudraaya
Neelakantaaya Shambhave 
Amriteshaaya Sarvaaya 
Mahadevaaya Te Namaha
Lord Mahadeva (Shiva) has conquered death. He is the destructive force of the universe. He has a blue neck and he gives happiness to all. We pray to the kind-hearted lord, Shiv-Shambhu.

OM
Gangadharaya Somaya
Namo Hariharathmane,
Ugraya Tripuragnaya,
Vamadevaya Mangalam. 
Mangalam to the god of the left, Who carries river Ganga, Who is the moon, Who is the soul of Vishnu and Shiva, Who is very powerful, and who destroyed three cities.

OM
Bhavvaya Chandra Choodaya
Nirgunaya Gunathmane
Kalakalaya Rudraya
Neela Greevaya Mangalam
Mangalam to him who has a blue neck, who makes things happen, who wears the crescent moon, who is without properties, who is the soul of good conduct, who is the death to the god of death and who has a very angry form.