1908 Adelaide by-election

{{Use Australian English|date=March 2024}}

{{Use dmy dates|date=April 2022}}

{{Infobox election

| election_name = 1908 Adelaide by-election

| percentage1 = 51.17%

| after_party = Labour

| after_election = Ernest Roberts

| before_party = Protectionist Party

| before_election = Charles Kingston

| title = MP

| swing2 = {{increase}}48.83

| percentage2 = 48.83%

| popular_vote2 = 4,887

| party2 = {{Australian politics/name|Independent Anti-Socialist}}

| colour2 = {{Australian politics/party colours|Independent Anti-Socialist}}

| image2 = 125px

| candidate2 = Alexander McLachlan

| swing1 = {{increase}}51.17

| popular_vote1 = 5,121

| country = Australia

| party1 = Labour

| image1 = 125px

| candidate1 = Ernest Roberts

| seats_for_election = The Adelaide seat in the House of Representatives

| registered = 29,874

| turnout = 10,068 (33.70%)

| next_year = 1910

| next_election = 1910 Australian federal election

| election_date = 13 June 1908

| previous_year = 1906

| previous_election = 1906 Australian federal election

| ongoing = no

| type = Parliamentary

| colour1 = DE3533

}}A by-election was held for the Australian House of Representatives seat of Adelaide on 13 June 1908. This was triggered by the death of former Premier of South Australia and federal Protectionist Party MP Charles Kingston.

The by-election was won by Labor candidate Ernest Roberts, after the seat was previously won uncontested by Kingston at the 1903 and 1906 elections. Voting was not compulsory in 1908.

Alexander McLachlan was an independent Anti-Socialist Party candidate.