Gwendolyn Anne Nagel QSO (née Townsend; 20 May 1946 – 17 October 2009) was New Zealand advocate for people with vision impairment, cricketer and international cricket umpire.^[1] She umpired in one Women's Test Match and three Women's One Day Internationals. Nagel made her first-class debut in December 1965. She played 14 first-class matches for North Shore Women.^[2] She was a right-handed batter and bowled left-arm medium fast.^[1]

Nagel has a master's of education degree from Massey University.^[3] Nagel spent over 25 years advocating and working for improved educational services for blind and vision-impaired children. She was a senior lecturer at the Auckland College of Education, where she was the coordinator of the Postgraduate Diploma in Education of Students with Vision Impairment. She spent many years as a vision research teacher, travelling to schools across the North Island to teach blind students. She also served as chief executive of the Vision Education Agency.^[4] In the 2009 New Year Honours, Nagel was appointed a Companion of the Queen's Service Order, for services to special education.^[5]