Diana McLean (born 1941) is an Australian television actress.
She is best known for her role as Sister Vivienne Jeffries in the television soap opera The Young Doctors from 1978 until 1982. After leaving that role, she appeared in the film, Early Frost (1982).
Other credits include: schizophrenic Dorothy Dunlop in Number 96, two separate guest appearances in Water Rats and All Saints.
She also completed a stint in Neighbours in 1999 as Bess O'Brien.
McLean also featured in an ABC mini series Winner Take All in 1982.