Here is a short Jain Naam Jaap (Namokar) mantra, commonly chanted for devotional remembrance:

Mantra (short form): Namo Arihantanam Namo Siddhanam Namo Ayariyanam Namo Uvajiyanam Namo Loe Savvasahunam

Transliteration: Namo Arihantanam Namo Siddhanam Namo Ayariyanam Namo Uvajiyanam Namo Loe Savvasahunam

Meaning (arth):

• I bow to the Arihantas (enlightened beings who have conquered inner passions).
• I bow to the Siddhas (liberated souls).
• I bow to the Acharyas (spiritual leaders who guide the path).
• I bow to the Upadhyayas (teachers who teach Jain doctrine).
• I bow to all the Sadhus (monks) and all the beings on the path.

Notes:

• This is a concise, all-encompassing Namokar mantra used for daily Naam Jaap.
• There are slight regional or sect-based variations in wording, but the core is to honor the fivefold venerables (Arihant, Siddha, Acharya, Upadhyaya, Sadhu).

If you’d like, I can provide a very brief version focusing only on the Arihant: “Namo Arihantanam.”