Philip Oliver Ellard Hawkes was an architect who practiced in the Wide Bay area of Queensland, Australia, from 1910 to 1942. A number of his works are heritage-listed.

Hawkes was born in 1882 in New South Wales.^[1] Hawkes worked in Perth, Launceston and Melbourne. Moving to Queensland, he worked briefly for the Works Department in 1909 before setting up his own practice in Bundaberg and Maryborough in 1910. He designed a number of premises for the Queensland National Bank; most of these were simple timber buildings, although the Kingaroy branch was a two storey masonry building, also in a Classical Revival style. This also featured round headed arches as do the Carroll Cottage and Carrollee Hotel in Kingaroy, which were also designed by Hawkes.^[1]

• Queensland National Bank, Childers^[1]
• Goomeri Hall of Memory^[2]
• St Pauls Anglican Church and Hall, Maryborough^[3]
• Maryborough War Memorial^[4]
• Pialba Memorial Cenotaph^[5]
• Lady Musgrave Maternity Hospital and nurses' quarters at Maryborough Base Hospital^[6]
• St Mary's Roman Catholic Church, Maryborough^[7]

• Hug, Susan (1987), The life and works of P.O.E. Hawkes, [St. Lucia, Qld.], retrieved 20 February 2018
• Seymour, George; Fraser Coast Heritage Advisory Committee (issuing body.) (2017), A duty to the community : the life and legacy of P.O.E. Hawkes (Limited ed.), Hervey Bay, Qld. Fraser Coast Heritage Advisory Committee, ISBN 978-0-9943680-4-1