The opposition leader has faced international disappointment at her reluctance to speak out in support of marginalised Rohingya Muslims in the western state, but is also viewed with suspicion among Buddhist hardliners who see her as sympathetic to the minority.
In a speech to hundreds of supporters in Rakhine's Thandwe town, Suu Kyi said it was critical that people nationwide could live "without discrimination based on race and religion".
Myanmar's general elections are tipped to be the freest in generations for a nation that languished in poverty and isolation under almost half a century of military rule.
Suu Kyi's National League for Democracy (NLD) -- contesting its first nationwide vote in 25 years -- is expected to shunt out the army-backed ruling party, which has overseen a quasi-civilian transition since junta rule ended in 2011.
Radical monks have surged in prominence in recent years, preaching a message that Muslims threaten the very fabric of Buddhist-majority Myanmar.
In Thandwe, the gateway to Myanmar's most popular tourist beach resorts, a wave of anti-Muslim rioting in 2013 killed at least six and left a legacy of fear in the region.
Those anxieties were on display at the rally yesterday, where Suu Kyi took questions from both Buddhists and Muslims.
But she slammed a Buddhist asking her to respond to rumours that her party would usher in a Muslim take-over of the country, saying the very question risked "inciting racial or religious conflict".
