Lord Hanuman is the avatar of Lord Shiva.

"Shankar Suvan Kesari Nandan, Tej Pratap Maha Jagvandan" ~ you are the incarnation of lord Shiva and son of Kesari, you are adored by the whole world due to your great courage and strength. 🙏🏻🐒🙏🏻 Yes, Lord Hanuman is the avatar of Lord Shiva. For Shiva, Rama is his God. He meditates on Rama Naam. Remember Lord Vishnu resides in Shiva's heart, His devotion to Rama ( avatar of Vishnu) is so complete and unique. When Shri Vishnu incarnated as Rama on earth, Shiva took the form of Hanuman Ji , never has been and never will be a devotee as complete and profound as Lord Hanuman. In other words, Shiva & Vishnu exist together and work together in multiple forms. Hanuman is Shiva, Rama is Vishnu. Many manifestations to protect mankind, to spread dharma. Shiva or Hanuman, Rama or Vishnu, Shiva or Vishnu, Shiva or Shakti, all are one. For those who discriminate, God never discrimintes between one person and another! Due to the differences in individual dispositions, therre may be different paths, but he is the only destination of all of them. ‪Rig Veda clearly states that there is only one God whom we call by various names "Ekam Sat Viprah bahudha vadanti". And that one single, non-dual god who appears as many forms is none other than Shiva! That's why Lord hanuman is as strong as Shiva and as benevolent as Him. He protects His devotees like Lord Shiva does. He personifies the grace of Shri Vishnu and Shiva. He has the distinctive power of Rudra. He is the force of prana and is completely detached, with the supreme intelligence of His mother. Born from the blessings of Shiva in the womb of Anjani who had been praying diligently to Shiva, Panchamukhi Hanuman is 11th Rudra of Shiva.! Many paths to the same goal ~ One Supreme!! Hari Om Tat Sat ~ Jai Shri ShankarNarayana ~ Jai Rudra Ke Roop Hanuman!! 🙏🏻🙏🏻🙏🏻🙏🏻