Sultan Sir Abu Bakar ibni Daing Ibrahim (3 February 1833 – 4 June 1895) (Jawi:المرحوم سلطان سير ابو بكر ابن المرحوم تماڠڬوڠ دايڠ إبراهيم سري مهاراج جوهر), also known as Albert Baker, was the 21st Sultan of Johor.
Unknown author<span style="display: none;">Unknown author</span>
not given, before 1895
<a rel="nofollow" class="external text" href="http://archives1.dags.hawaii.gov/gallery2/main.php?g2_itemId=55855">Hawaii State Archives. Call Number: PP-73-4-006</a>