This is a list of members of the eighth parliament of the South Australian House of Assembly, which sat from 6 May 1875 until 13 March 1878. The members were elected at the 1875 election. Light MHA Randolph Isham Stow resigned on 6 May 1875. Jenkin Coles won the on 17 May. The two members for Yatala, Wentworth Cavenagh and Lavington Glyde, both resigned on 6 May 1875. Both men recontested the resulting by-election, which saw Cavenagh returned but Glyde defeated by Thomas Cowan. Matthew Madge was initially declared elected as a member for Wallaroo, but his election was challenged and he was unseated on 20 May 1875. Robert Dalrymple Ross won the on 4 June. Johann Sudholz was initially declared elected as a member for Barossa, but his election was challenged and he was unseated on 22 May 18